高中生、艺考生、留学生的好帮手-学考宝
莫等闲,白了少年头,空悲切 因学习而成长,因学习而成熟

divide翻译_divide短语搭配_divide权威例句

基本释义:

divide

英 [dɪˈvaɪd]play美 [dɪˈvaɪd]play

  • v. (使)分开,分散;分配,分担;使分离;分隔,隔开;使产生分歧;除,除以;分岔
  • n. 差异,分歧;(两事物间的)界限;<美>分水岭,分水线

复数 divides 第三人称单数 divides 现在分词 dividing 过去式 divided 过去分词 divided

词典扩展 短语搭配 权威例句 实用例句

柯林斯词典

divide /dɪˈvaɪd/ CET4 TEM4 [ dividing divided divides ]

  • 1.
    及物动词/不及物动词 When people or things are divided or divide into smaller groups or parts, they become separated into smaller parts. 分割; 分离
    例:

    The physical benefits of exercise can be divided into three factors.

    锻炼对身体的好处可以分成3个方面。

    例:

    Divide the pastry in half and roll out each piece.

    把面团一分为二,把每块都擀平。

  • 2.
    及物动词 If you divide something among people or things, you separate it into several parts or quantities which you distribute to the people or things. 分配
    例:

    Divide the sauce among 4 bowls.

    把调味汁分到4个碗里。

  • 3.
    及物动词 If you divide a larger number by a smaller number or divide a smaller number into a larger number, you calculate how many times the smaller number can fit exactly into the larger number. 除; 除尽
    例:

    Measure the floor area of the greenhouse and divide it by six.

    测量温室的地表面积,再除以6。

  • 4.
    及物动词 If a border or line divides two areas or divides an area into two, it keeps the two areas separate from each other. 分隔
    例:

    ...remote border areas dividing Tamil and Muslim settlements.

    …把泰米尔人和穆斯林居住地分隔开的偏僻边界地区。

  • 5.
    及物动词/不及物动词 If people divide over something or if something divides them, it causes strong disagreement between them. 使不和; 不和
    例:

    ...the major issues that divided the country.

    …造成国家分裂的重大问题。

  • 6.
    可数名词 A divide is a significant distinction between two groups, often one that causes conflict. (引发冲突的) 重大差异
    例:

    ...a deliberate attempt to create a Hindu-Muslim divide in India.

    …蓄意在印度制造印度教徒和穆斯林教徒之间差异的企图。

同根词

词根:divide

  • adj.

    divided 分裂的;分开的;有分歧的

    divisive 分裂的;区分的;造成不和的

    divisible 可分的;可分割的

    dividing 区分的;起划分作用的

    divisional 分区的;分割的

    dividable 可分的

  • n.

    division [数] 除法;部门;分割;师(军队);赛区

    divider [计] 除法器;分隔物;圆规

    divisibility 可分性;[数] 可除性

  • v.

    divided 分开(divide的过去分词);分离

    dividing 分开(divide的ing形式)

同近义词

同义词辨析

separate divide isolate part 【导航词义:分开,隔开】

separate v. 分开,隔开

〔辨析〕 指将混合物按不同类别分开,也指把紧连在一起或溶合在一起的东西分开。

例1: Please separate the marked examination papers into passes and fails.

请将批阅完的考卷按及格和不及格分开。

例2: The two communities are separated by a narrow street.

这两个社区被一条狭窄的街道隔开。

例3: She separated the whites and yolks of 4 eggs.

她把4个鸡蛋的蛋清和蛋黄分开。

divide v. 隔开,分离

〔辨析〕 指把两个区域分隔开,或将一个整体分为若干部分,有时含平均划分之意。

例1: The river divides my orchard from his.

这条河把我的果园和他的果园隔开了。

例2: This cake is divided into four equal parts.

这个苹果被分成了4等份。

例3: The teacher divided the class into five groups.

老师把全班分成5个小组。

isolate v. 分隔,隔离

〔辨析〕 指区别看待问题、观点等,也指使人或物处于孤立、隔离的状态。

例1: It is wrong to isolate moral responsibility from political responsibility.

把道德责任和政治责任分隔开来是错误的。

例2: The village was isolated by the flood.

这个村子因洪水而与外界隔绝。

例3: People with contagious diseases should be isolated.

传染病患者应予以隔离。

例4: The radical group in the ruling party insisted upon isolating the country politically.

执政党内的激进派坚持主张从政治上孤立该国。

part v. [书] (使)分开,分手

〔辨析〕 多指使紧密相连的人或物分开,指父母和子女分开时多用被动语态。

例1: She parts her hair in the middle.

她从中间把头发分开。

例2: The crowd parted to let the police car through.

人群分开让警车通过。

例3: She hated being parted from the children.

她不愿和孩子们分离。

例4: She has parted from her husband.

她和丈夫已经分居了。

词组短语

1. be divided against itself (团体)分裂而自我削弱,内部分裂,发生派系斗争,发生内讧 [《马可福音》3:25]

2. divide and rule 各个击破 ; 将其分开进行治理

3. digital divide 数字鸿沟

4. Continental Divide 大陆分水岭 ; 天南地北一线牵 ; 分水岭 ; 大陆分界线

5. drainage divide 分水岭 ; 硫分界线 ; 水文 流域分界线

6. divide by 除以;用…除

7. divide up 瓜分;分割;分配

8. water divide 分水岭 ; 分水线 ; 分水界

9. continental divide 美国大陆洛矶山脉分水岭

10. Divide and Conquer 分治法 ; 分而治之 ; 分治 ; 分而制之

11. divide the work 分工

12. divide out 分配;除,约去

13. divide and conquer 分而治之;各个击破

14. new divide 林肯公园 ; 重生阵线 ; 新转机 ; 变形金刚2主题曲

15. divide into 把……分成

词语搭配

divide与以下词性连用

prep.

divide into 分成

divide among 在…中分配

divide between 在…之间分配

divide by 将...除以

n.

divide in half 将…分成两半

divide your time 分配时间

权威例句

1. Divides the value a variable value of an expression and assigns the result to the variable.

变量值除以表达式值,并将结果赋给该变量.《期刊摘选》

2. the North/South divide

南北分歧《牛津词典》

3. Is Christ divided? Was Paul crucified for you? Were you baptized into the name of Paul?

基督是分开的 吗 ?保罗为你们钉了十字架 吗 ?你们是奉保罗的名受了洗 吗 ?《期刊摘选》

4. You do that by dividing the total return by your purchase price.

用总体回报除以购买价格即可得到这个数字.《期刊摘选》

5. It is not an idea around which the community can unite. On the contrary, I see it as one that will divide us.

这不是一个可以让我们的组织团结起来的主意。恰恰相反,我看它会分裂我们。《柯林斯英汉双解大词典》

6. Opinions are divided in this respect and as always are pros and cons this idea.

在这方面大家的意见是有分歧的,就像以前一样有赞成也有反对.《期刊摘选》

7. BMI equals body mass divided by the square of height.

BMI便是体重除以身高的平方。《14年12月考研真题 | 阅读》

8. The next step is to actively engage work'I's that divide attention and promote presence.

下一步是积极引发能够分开注意力和提倡当下的工作的 [ 我].《期刊摘选》

9. ...a deliberate attempt to create a Hindu-Muslim divide in India.

故意在印度的印度教徒和穆斯林之间制造分歧的企图《柯林斯高阶英语词典》

10. The Red Sea divides Africa from Asia.

红海把亚非两大洲分开了.《期刊摘选》

11. Western China is the dividing line between subtropical and temperate.

是中国西部亚热带与暖温带的分界线.《期刊摘选》

12. Opinion is divided on the issue of taxes.

关于税捐问题,大家意见分歧.《期刊摘选》

13. Indicate which separator character is used to divide the data fields of your address list.

请指定用于划分地址列表中数据域的分隔符.《期刊摘选》

14. Popular opinion was divided on the issue.

在这个议题上,民众意见有分歧。《牛津高阶英汉双解词典》

15. With regard to sex, digital divide exists between men and women.

在性别方面,男性和女性之间存在数字鸿沟。

16. It is these issues that divide the two countries most sharply.

在这些问题上,两国之间的分歧最为尖锐.《期刊摘选》

17. The room was divided by a folding screen.

房间有一个折叠屏风分隔开.《简明英汉词典》

18. They went to the shop downstairs. They bought some ice cream. Patsy divided the ice cream.

他们去楼下商店买了些冰激凌. 帕特西来分配这些冰激凌.《期刊摘选》

19. In the cloaca there are many annular an obvious one divides anus channel and uigenita 1 sinus.

泄殖腔内有明显的环褶将肛道与尿、生殖道分开.《期刊摘选》

20. The cells began to divide rapidly.

细胞迅速分裂。《牛津词典》

21. Yet for all the talk of regional integration, political Latin America looks more divided than ever.

尽管存在该地区一体化的种种说法, 但是在政治上,拉丁美洲似乎存在前所未有的分歧.《期刊摘选》

22. In the United States, the so-called "digital divide" seems to be disappearing.

在美国,所谓的“数字鸿沟”似乎正在消失。

23. Remove the meat with a fork and divide it among four plates

用餐叉把肉叉走,分到4个盘里。《柯林斯高阶英汉双解学习词典》

24. The fields were divided by stone walls.

这些田地由石墙分隔。《牛津高阶英汉双解词典》

25. After repairing, no cracks, no hard points and no clear dividing line exist.

修补后铸件无裂纹 、 无硬点、无明显分界线.《期刊摘选》

26. Please ouput the total money everyone got in a line divide by white space.

请将每个人得到的钱用空格分开!写出一行!《期刊摘选》

27. Their views on the subject were much divided.

他们对这问题的看法有很大分歧.《期刊摘选》

28. Multilocular renal cell carcinoma has aggregates of clear cells within the septae dividing cystic spaces.

多房性肾细胞癌的囊内有透明细胞的聚集,其间有分隔.《期刊摘选》

29. We need to try and narrow the health divide between rich and poor.

我们需要设法缩小穷人和富人之间的健康差距。《牛津词典》

30. The money was divided equally among her four children.

这笔钱在她的四个孩子中平分了。《牛津高阶英汉双解词典》

31. Where the path divides, keep right.

来到岔路口就靠右行。《牛津词典》

32. For the sake of simplicity, let's divide the discussion into two parts.

为了方便起见,我们把讨论分成两部分。《牛津高阶英汉双解词典》

33. The procedure can be divided into two parts.

这一程序可以分为两部分。《牛津高阶英汉双解词典》

34. I any lines that divides us.

我看不到分开我们的那些线.《期刊摘选》

35. Oceans do not so much divide the world as unite it.

与其说海洋分隔了世界,不如说海洋连结了世界.《期刊摘选》

36. How shall we divide out the money that we have collected?

我们如何分配这些募捐来的钱 呢 ?《简明英汉词典》

37. Grandpa Wan grew painfully aware that the family were divided in their attitude.

万大爷痛苦地意识到一家人的看法有分歧.《期刊摘选》

38. The crests of the Rocky Mountains are known as the Continental Divide.

落矶山脉的峰峦有“大陆分水岭”之称.《辞典例句》

39. The House again divided, and the bill was passed by 11 votes.

议院的意见又产生了分歧, 该法案以11票获得通过.《简明英汉词典》

40. ...remote border areas dividing Tamil and Muslim settlements.

将泰米尔聚居区和穆斯林聚居区隔开的偏远边境地区《柯林斯高阶英语词典》

41. When he struck the water , it divided the right andthe left and he crossed over.

打水之后、水也左右分开、以利沙就过来了.《期刊摘选》

42. As Lincoln said to a nation far more divided than ours.

林肯在向远比我们眼下分歧更大的国家发表讲话时说.《期刊摘选》

43. The teacher divided the younger children from the older ones.

那个老师把年纪较小的与年纪较大的学童分开(编排).《辞典例句》

44. Divide your food and conquer overeating.

分开包装食物,战胜饮食过量.《期刊摘选》

45. She divided her time between acting and writing.

她把时间在表演和写作之间做了分配.《期刊摘选》

46. But kindred communication is one of the reasons why the social resources are divided unfairly.

而人情交往是导致社会资源分配不公的原因之一.《期刊摘选》

47. Probably the dividing line occasionally became blurred even in Haig's mind.

也许这条分界线在黑格的心目里有时也含混不清.《辞典例句》

48. The resulting wafer is divided into individual pieces , called chips, and served to customers.

生产出来的晶片被分开成为许多单独的称为芯片的薄片, 为消费者服务.《期刊摘选》

49. To divide and distribute proportionally; apportion.

分配,配给按比例分割并分配; 分摊.《期刊摘选》

50. How much is 2 0 divided by 5?

20除以5是 多少 ?《期刊摘选》

51. In most humans, the parietal lobules are divided by a fissure.

很多人的头顶骨小叶被一条裂沟分开.《期刊摘选》

52. Four divided by two gives two.

四除以二得二.《期刊摘选》

53. Add all the numbers together, divide by ten, and take away the number you first thought of.

把这些数相加, 除以10, 然后减去你一开始想着的数字.《简明英汉词典》

54. The idea is to divide up the country into four sectors.

该观点是将国家一分为四。《柯林斯英汉双解大词典》

55. Annual average temperature is the summation of monthly average of a year divided by 12 months.

年平均气温是将12个月的月平均气温累加后除以12而得.《期刊摘选》

56. Dividing partition coal pillars and region coal pillars, and selecting parameter are key to prevent disaster.

区分隔离煤柱和区内煤柱, 选择合理开采参数,是防止灾变的关键.《期刊摘选》

57. a policy of divide and rule

分而治之的政策《牛津词典》

58. He divides his energies between politics and business.

他把精力一部分用在政治上,一部分用在生意上。《牛津词典》

59. The members of the investment club divide their profits equally among themselves.

投资俱乐部的成员们平均地分配了所得利润.《期刊摘选》

60. The Rockies, the backbone of the North American Continent, is also known as the Continental Divide.

落基山脉是北美大陆的脊梁, 也被成为大陆分水岭.《期刊摘选》

61. The big divide comes in the method of holding one's knife and fork.

如何拿刀叉是个重要的分界线.《期刊摘选》

62. Do you divide your hair at the side or in the middle?

你的头发是偏分还是中间分?《新英汉大辞典》

63. The pupil could add and subtract but hadn't learned to divide.

这名小学生能做加法和减法,但还没学会做除法。

64. The episode throws reliefdeep divide over how many Chinese and Westerners view artistic expression.

这件事情说明了中西方对艺术表达的分歧有多大.《期刊摘选》

65. In practice, this is implemented by dividing the damage by the life scaling factor of monsters.

实践表明, 这是由怪物生命值判定倍数除以伤害实现的.《期刊摘选》

66. Evenly divided sections have little impact other than symmetry or peace.

平均分配部分产生的影响不大,除了对称或者和平.《期刊摘选》

67. Immediately after fertilization, the cells of the egg divide.

卵受精后细胞立即开始分裂。《牛津高阶英汉双解词典》

68. To divide and assign according to a plan ; allot.

用以分配、分派或者分散.《期刊摘选》

69. The physical benefits of exercise can be divided into three factors...

运动对身体的好处可以分为3个方面。《柯林斯高阶英语词典》

70. Let up put on one side the fears which have divided us in the past.

让我们不去计较那些过去使我们发生分歧的顾虑吧.《期刊摘选》

71. Clipping is the process of dividing polygons into only the fragments that will appear on screen.

裁切是将多边形分开成可以在屏幕上显示的片断的过程.《期刊摘选》

72. The children are already learning to multiply and divide.

孩子们已经开始学习乘法和除法了。《牛津词典》

73. Separating the students into good and bad is like dividing the sheep from the goats.

把学生分为好坏,就象把绵羊和山羊分开一样.《期刊摘选》

74. Oceans don't so much divide the world as unite it.

与其说海洋把世界分隔开,倒不如说它们将世界连成一体。《新英汉大辞典》

75. What is 100 times 4 divided by te squre root of 100?

100乘以4再除以100的平方根等于多少?《期刊摘选》

76. For a criminal the stakes are higher and the dividing lines sharper.

对一个罪犯来说,风险更高,分界线更明显.《期刊摘选》

77. Steamboats are often divided into watertight compartments by watertight partitions.

汽船常用滴水不漏的隔墙分隔滴水不漏的隔间.《期刊摘选》

78. It is now clear that this was a ruse to divide them.

现在清楚了,这是分裂他们的诡计。《柯林斯英汉双解大词典》

79. What happened is that the major divide in opera that endures today took place.

发生的事情是,歌剧中的主要分歧产生了,这个分歧持续到今天。

80. Measure the floor area of the greenhouse and divide it by six.

量一下温室的建筑面积再将它除以 6。《柯林斯高阶英语词典》

81. The report can be conveniently divided into three main sections.

这份报告不用费事就可划分为三个主要部分。《牛津高阶英汉双解词典》

82. Paul divides most of his spare time between the study and his bedroom...

保罗在大部分空闲时间里要么呆在书房里,要么呆在卧室里。《柯林斯高阶英语词典》

83. The road divides from here.

道路从这分开.《期刊摘选》

84. 30 divided by 6 is 5 (30 ÷ 6 = 5) .

30除以6等于5。《牛津词典》

85. But in the meantime, unknown to them, fourteen villages had elected committees to divide the land.

而美国人却不知道, 有十四个村子选出了分配这片地的委员会.《期刊摘选》

86. the divide between Catholics and Protestants in Northern Ireland

北爱尔兰的天主教徒和新教徒之间的分歧《牛津词典》

87. Initiating divided attention is one thing. Prolonging it is another.

展开分开注意力是一回事, 延长它则是另外一回事.《期刊摘选》

88. We all divide equally.

我们平等分配,各取一份.《期刊摘选》

89. They divided the money up among the children.

他们把钱分给了孩子们。《牛津高阶英汉双解词典》

90. The school year is divided into three trimesters.

一学年分三个学期。《牛津高阶英汉双解词典》

91. The government's policies of divide and rule have only contributed to the volatility of the region.

政府分而治之的政策只是加剧了该地区的不稳定性。《柯林斯高阶英语词典》

92. The concrete wall that used to divide this city has now all but gone.

这堵曾经被用来分隔这座城市的水泥墙现在差不多不存在了。《柯林斯英汉双解大词典》

93. Meanwhile, macroeconomists were divided in their views.

不过, 宏观经济学家的观点还是有分歧的.《期刊摘选》

94. A reading of 50 is the dividing line between expansion and contraction.

而指数50就是扩大生产和收缩生产的分界线.《期刊摘选》

95. I would not be culpable for dividing and restricting computer users, but it would happen nonetheless.

我将不会因分开和限制计算机用户而被指责, 虽然如此,这种情形会继续发生.《期刊摘选》

96. Dividing the ADC count by a constant yields a linear display of the input voltage.

将ADC计数值除以一个常数得到输入电压的线性显示.《期刊摘选》

97. Speed can be calculated by dividing distance by time.

通过四维分开距离来计算速度.《期刊摘选》

98. The perennial political divide, Us versus Them.

永久的政治分界线:我们与他们.《期刊摘选》

99. A dividing wall painted aslate grey takes a sculptural quality in this open and airy space.

进门后,过道与餐厅的分隔墙漆成了深灰色,让这个通畅的开放空间更具立体感.《期刊摘选》

100. The course book is divided into 30 lessons.

这本教科书分为30课。《牛津高阶英汉双解词典》

101. The interesting dividing line is, instead, one that cuts across departments and disciplinary matrices.

相反, 真正有趣的分界线是跨越诸多院系和学科母体的.《期刊摘选》

102. Opinions are divided about the matter.

在这个问题上,意见有分歧.《期刊摘选》

103. The oceans do not so much divide the world as unite it.

与其说大洋分隔了世界,不如说它们联结了世界.《期刊摘选》

104. They were divided in their opinions.

他们的意见有分歧.《期刊摘选》

105. The real dividing line between continents and oceans occurs at the foot a steeper slope.

大陆和海洋的真正分界线是在陡破脚下.《期刊摘选》

106. The discovery of a second face on the Turin Shroud has again divided opinion.

都灵裹尸布第二张脸的发现再一次有了分歧的观点.《期刊摘选》

107. I've divided the money in half.

我把钱平均分成了两半。《牛津高阶英汉双解词典》

108. Divide the ice cream equally.'

把冰激凌平均分配.《期刊摘选》

109. Divide the ice cream equally.

“把冰激凌平均分配. ”《期刊摘选》

110. It will be easiest if we divide them into groups...

如果我们将他们分成小组将是最简单的。《柯林斯高阶英语词典》

111. The results can be divided into three main categories.

结果可分为三大类。《牛津高阶英汉双解词典》

112. About 40 dividing wall columns ( DWC ) have been applied industrially.

其中的分隔壁精馏塔已有40座以上工业化.《期刊摘选》

113. Health is measured easily enough. Take expectancy at birth, subtract 25 years, then divide by 60.

健康指标的计算就够简单的了: 用出生时的预期寿命减去25年, 再除以60.《期刊摘选》

114. A new study shows a large gender gap in economic policy among the nation's professional economists, a divide similar to the gender divide found in the general public.

一项新的研究显示,美国专业经济学家在经济政策上存在巨大的性别差异,这种差异类似于普通大众的性别差异。

115. Their profits were divided unequally.

他们的利润分配不均.《辞典例句》

116. Just then the branches divided and a snake came through.

就在这时树枝被分开,一条蛇爬了过来.《期刊摘选》

117. Many geographers say that the Ural Mountains form the dividing line between Europe and Asia.

许多地理学家认为,乌拉尔山脉是欧亚两洲的分界线.《期刊摘选》

118. Again he divided the gold, this time merely spilling half of it on the ground.

于是他重新把金子分开, 但这一次只把其中的一半倒在地上.《英汉文学 - 热爱生命》

119. The three-hour class is divided into four blocks of 45 minutes each.

三小时的课分成四节,每节45分钟。《牛津高阶英汉双解词典》

120. We divided the work between us.

我们共同分担这项工作。《牛津词典》

121. Then we divided ourselves into small groups to carry out our allotted tasks.

然后我们分为小组来执行分配给我们的任务.《期刊摘选》

122. Wall: Any of various upright constructions used to divide or enclose a room or Building.

墙: 在房屋建造中用于分隔或围护房间或房屋的外围部分.《期刊摘选》

123. To divide by 12, the trick is divide by 4 first, then by 3.

为了完成处理12, 我们采用以下技巧,先将数除以4, 然后再除以3.《期刊摘选》

124. A ridge of high land dividing two areas that are drained by different river systems.

落基山脉成了隔开这两大水系的大陆分水岭.《期刊摘选》

125. Jerusalem would be shared and divided — another tortuous task but not an impossible one.

耶路撒冷将被共享和分隔——另一项曲折的任务,但并非不可能.《期刊摘选》

126. Divide 2 into 7, and the answer is 3, remainder 1.

7除以2,商3余1。《牛津词典》

127. Note the bands of pink tissue dividing the field in this lymph node.

图示粉红色的胶原束伸入并分隔淋巴组织.《期刊摘选》

128. Contractors were able to remove a large ceiling soffit that also had divided the space.

承办商能够拆除大片的天花板背面,这样也可以分隔空间.《期刊摘选》

129. The democrats are divided over whether to admit him into their group...

民主党人就是否允许他加入他们的组织意见不一。《柯林斯高阶英语词典》

130. The straight white parting in her ebony hair seemed to divide the back of her head in half.

她乌黑头发中笔直的白色分发线似乎把她的后脑勺分成了两半。《柯林斯英汉双解大词典》

131. We are divided in our opinions.

我们意见分歧.《期刊摘选》

132. The informal ratio of output divided by capital expenditure.

产出除以资本支出的比率.《期刊摘选》

133. It is defined as dividend received in a year divided by the share price.

股息率是一年的总股息除以股价.《期刊摘选》

134. Marital property is the same as community property and is divided equally upon divorce.

夫妻财产也同样属于共同财产,离婚时应作平均分配.《口语例句》

135. Work and personal lives are rigidly divided.

工作和个人生活被严格地区分开来.《期刊摘选》

136. Well, how do you divide up your schedule?

那么,你们是怎么分配你们的工作安排呢?

137. Eighty divided by four equals twenty.

八十除以四等于二十.《辞典例句》

138. He has a substantial estate that must be divided among his heirs.

他有丰厚的家产要分配给他的继承人.《期刊摘选》

139. When you look at attitudes toward driverless cars, there doesn’t seem to be a clear generational divide.

关于对无人驾驶型汽车的态度,不同代人之间的分歧似乎就没有那么明显。《16年6月四级真题(第二套)| 阅读》

140. To remember yourself means to intentionally divide your attention and aware of yourself in your surroundings.

记得你自己意指刻意分开你的注意力,并且觉察自己正在周遭环境当中.《期刊摘选》

141. Divide the sauce among 4 bowls.

把酱汁分到 4 个碗里。《柯林斯高阶英语词典》

142. The average power is the work performed divided by the time required for the performance.

平均功率是所做的功除以做功所需的时间.《期刊摘选》

143. Dividing the job between two rockets frees up more payload space on the Ares V.

把这些工作分配给两枚火箭将给“战神五号”挤出更多的有效负荷空间.《期刊摘选》

144. How should we divide the shares?

我们该如何划分股份?

145. HTNOWHERE On the screen background or on a dividing line between windows.

HTNOWHERE在屏幕背景或窗口之间的分隔线上.《期刊摘选》

146. Look at this rough drawing of one of them, one Chromosome about to divide into two.

看一下其中一条的草图,一条将要分裂成两条的染色体。

147. Divide 6 by 3 and then subtract 1 from the quotient.

从6除以3所得的商减去1.《期刊摘选》

148. And it will blur the existing partisan divide on the issue between conservatives and liberals.

其次是它将模糊现存于保守人士和自由主义者之间对此问题的分水岭.《期刊摘选》

149. The said interest shall be divided into five parts and distributed as follows.

上述利息应分成五部分,并以下列方式分配.《期刊摘选》

150. You will give more consideration of how you divide your time and effort throughout the day.

你将会更在意在你的每一天里,你是怎样划分你的时间和精力。

151. Information section of each audio playback time equal to the total time divided by 600.

每个信息段的录放音时间等于总时间除以600.《期刊摘选》

152. We often divide a river into three parts, that is the upper, middle and lower reaches.

我们经常把一条河分成三部分:上游 、 中游和下游.《简明英汉词典》

153. Some cells, like nerve cells, only divide seven to nine times in their total life.

有些细胞在它们的一生中只分裂7到9次,例如神经细胞。

154. For the sake of simplicity , let's divide the discussion into two parts.

为了方便起见,我们把讨论分成两部分。《牛津词典》

155. They divided the goods by casting lots to see who would get what.

他们用抽签的方式分配货物,看看谁能够得到什么.《期刊摘选》

156. After days, many of the cells had died, but a few continued to grow and divide.

几天后,许多细胞已经死亡,但少数细胞继续生长和分裂。

157. The dividing line is bound to change and cannot be fixed for all time.

两者的分界线注定会改变,一成不变是不可能的.《期刊摘选》

158. If this can be done, then the divide-and-conquer algorithm is a good choice.

如果可以这么做,那么分治算法是个好的选择。

159. To divide, distribute, or proportionately.

通过分派或分发的分配行为.《期刊摘选》

160. The time had come to cross the great divide between formality and truth.

是时候跨越形式与真理之间的巨大分界线了。《柯林斯例句》

161. Yes, we have to divide up our time like that, between our politics and our equations.

是的, 我们需要将我们的时间在政治和方程式之间分开来.《期刊摘选》

162. We were always too divided among ourselves to take any joint action.

我们总是意见分歧,无法采取任何共同行动.《辞典例句》

163. Opinions as to what should be reconstructed on the site are largely divided.

关于在旧址上应重建什么,出现了重大的意见分歧.《期刊摘选》

164. Opinions are divided on this point.

在这一点上意见有分歧.《期刊摘选》

165. For some distance the Rhine forms the dividing line between France and Germany.

莱茵河构成法国和德国之间的一段分界线.《期刊摘选》

166. The professor divided the class into five groups and allocated tasks to the five groups.

教授把这个班分成了五个组,并给每个组分配了各自的任务.《期刊摘选》

167. Our opinions were divided on the matter.

对那件事我们的看法有分歧.《现代汉英综合大词典》

168. 5 divides into 30 6 times.

5除30等于6。《牛津词典》

169. Jack divided up the rest of the cash.

杰克把余下的现金分了。《牛津词典》

170. Next, the body weight dividing height's quadratic, the value which obtains is your healthy body weight.

其次, 将体重除以身高的二次方, 得出的数值便是你的健康体重.《期刊摘选》

171. The intensity of stress is expressed in units of force divided by units of area.

压强用力除以单位面积表示.《期刊摘选》

172. The bigger issue that divides economists is whether China's growth spurt is sustainable.

关于中国经济快速增长是否具有可持续性,在经济学家们中间产生了更大的分歧.《期刊摘选》

173. A sentence can be divided up into meaningful segments.

一个句子可以划分成有意义的各个部分。《牛津词典》

174. The ratio is computed by dividing annual net sales by average accounts receivable.

这个比例是用年度销售净值除以应收账款平均数计算出来的.《期刊摘选》

175. Can you divide 49 by seven?

你能计算49除以7 吗 ?《期刊摘选》

176. It'sounds simple, yet this double awareness, this divided attention, never happens by itself.

听起来很简单, 但是这种双重的觉察 、 分开的注意力, 永远不会自行发生.《期刊摘选》

177. Divide the decimal by a whole number.

把这个十进制的数除以一个整数.《期刊摘选》

178. The issue of education policy divided the government.

教育政策问题使政府产生了意见分歧.《期刊摘选》

179. The jury are divided in opinion.

陪审团的意见分歧.《期刊摘选》

180. The estate was divided among the relatives.

这笔遗产在亲属中分配.《期刊摘选》

181. The English channel is the ocean passage dividing England and France.

英吉利海峡是分开英国和法国的海洋通道.《期刊摘选》

182. Opinion is divided on the issue.

大家对这件事意见分歧。《牛津高阶英汉双解词典》

183. The Berlin Wall symbolized a world divided and it defined anentire era.

柏林墙象征着一个分隔的世界,代表一个时代.《期刊摘选》

184. Also, assume that Adams and Barnes agree to divide any remaining profit or loss equally.

同时, 假设亚当斯和巴恩斯同意平均分配其余的损益.《期刊摘选》

185. An annotated bibliography follows, divided by topic.

一条注释的书目跟随, 除以题目.《期刊摘选》

186. The government is divided on this issue.

政府在这个问题上意见不统一。《牛津高阶英汉双解词典》

187. Chose the image to solve and divide it to number of blocks and jumble it together.

挑选形象解决和分配它街区的计数,一起搀杂它.《期刊摘选》

188. The mountain is the divide between the two rivers.

这座山是这两条河的分水岭.《简明英汉词典》

189. She has done more to divide the Conservatives than anyone else...

她在分裂保守党这件事上所起的作用比任何人都大。《柯林斯高阶英语词典》

190. The Kasradze home is just a kilometer from the dividing line with South Ossetia.

卡斯拉泽住所离南奥塞梯分界线只有一公里.《期刊摘选》

191. Axis: An imaginary dividing line around which design elements are located.

轴线: 一条虚设的分界线,利用它来确定设计单元的摆放位置.《期刊摘选》

192. The English Channel divides England from France.

英吉利海峡把英法两国分隔开来.《辞典例句》

193. You can divide the mixture and freeze one portion to eat later.

你可以将这些混合物分开,冻上一份以后吃.《期刊摘选》

194. She divided the younger children from the older ones.

她把年幼些的孩子与大一些的分开.《简明英汉词典》

195. An orchestrated series of courts divide and sculpt the space of the house.

精心策划的一系列庭院将整个公馆的空间分隔.《期刊摘选》

196. After 160 degrees west longitude 20 degrees west longitude hemisphere is the dividing line.

经160度西经20度的经线是东西半球的分界线.《期刊摘选》

197. The party was divided on this issue.

该党在这一问题上存在分歧。《牛津高阶英汉双解词典》

198. Opinion is deeply divided on this issue.

对这个问题的意见分歧很大。《牛津高阶英汉双解词典》

199. Yamada Denki and its handful of smaller rival chains were able to divide and rule.

山田电机及其为数不多的较小竞争链能够分配并管理.《期刊摘选》

200. This will have an impact on how the investor divides his money among different countries stocks.

这将影响投资者把资金分配于不同市场和股票的决定.《期刊摘选》

201. The issue has divided the government.

这个问题在政府中引起了意见分歧。《牛津词典》

202. The sea divides England and the Continent.

大海将英格兰与欧洲大陆分开了.《简明英汉词典》

203. Can it ever be right to divide a mother from her child?

让母子分离难道还有对的时候?《牛津词典》

204. How shall we divide up the work?

我们怎么分工呢?《牛津词典》

205. Resistance equals voltage divided by current.

电阻等于电压除以电流.《期刊摘选》

206. Any remaining assets are divided among the shareholders in proportion to the number of shares owned.

其余资产再按股东的持股比例进行分配.《期刊摘选》

207. Equally divide profits between the partners.

在合伙人之间平均分配利润.《期刊摘选》

208. Troops were disengaged from the dividing line.

双方军队在分界线脱离了接触.《期刊摘选》

209. Those cells divide and give many other different types of cells.

那些细胞分裂后形成许多其他不同类型的细胞。《柯林斯英汉双解大词典》

210. Measuring result divided by the measured truth value.

测量结果除以被测量的真值.《期刊摘选》

211. Wallace: What are the major issues currently dividing China and America?

迈: 目前中美双方是否存在大的分歧问题?《期刊摘选》

212. The dimension for speed is length divided by time.

速度是长度除以时间.《期刊摘选》

213. Apartheid used tribalism as the basis of its "divide-and-rule" homeland policies.

南非种族隔离制将部落制作为它对国土“分而治之”的政策基础。《柯林斯英汉双解大词典》

214. Combo box with a similar 3 D dividing line, VC ++ A simple application.

实现与组合框类似的3D分隔线, VC++的一个简单应用.《期刊摘选》

215. There is no clear dividing line between what is good and what is bad.

是非之间没有明确的界限。《牛津高阶英汉双解词典》

216. Alternatively, it can divide itself symmetrically.

或者, 这个细菌能够将自己对称分配.《期刊摘选》

217. The Balcones Fault is the geological dividing line.

鲍尔肯断层是地理分界线.《期刊摘选》

218. The river divides my land from his.

这条河将我的地和他的地分开.《期刊摘选》

219. The dividing line ran through the center of town.

分界线从小镇中央穿过.《期刊摘选》

220. The dividing line between the two is not always sharp.

两者的分界线不总是明确的.《辞典例句》

221. A developer bought the land and divided it into stands.

开发商买下这块土地将其分为多块建筑用地。《牛津高阶英汉双解词典》

222. Luke Kenley, an influential state senator from Indiana , sees a philosophical divide along generational lines.

印第安纳颇具影响的议员鲁克.肯利认为, 在不同年龄段之间已经出现了观念分歧.《期刊摘选》

223. Nine divided by three makes three.

九除以三得三.《辞典例句》

224. This method divides the cooperative profit into'fixed profit'and'venture profit'firstly.

该方法的核心是将合作收益分为 “ 无风险收益 ” 和“风险收益 ” 两部分分别进行分配.《期刊摘选》

225. I should note that purported free lunches are found on both sides of the political divide.

应当注意到,假想的免费午餐,政治分歧的双方都有所描绘.《期刊摘选》

226. The men were divided from the children.

把男人和小孩分开.《期刊摘选》

227. A new study shows a large gender gap on economic policy among the nation's professional economists, a divide similar to the gender divide found in the general public.

一项新的研究显示,美国专业经济学家在经济政策上存在巨大的性别差异,这种差异类似于普通大众的性别差异。

228. A fence divides off the western side of the grounds.

篱笆把庭院的西面隔开。《牛津词典》

229. You can divide this between you.

这个你们可以两人平分。

230. ...the artificial line that divides the city.

划分城市的人为分界线《柯林斯高阶英语词典》

实用例句

1. He offered to divide Oregon at the forty-ninth parallel of latitude.

VOA : special.2009.02.19

2. "Something happened post-World War Two where a divide occurred between the audience and the composer.

VOA : special.2010.07.19

3. Divide the batter evenly between the two pans and smooth the tops with the rubber spatula.

NPR: Recipe: Devil's Food White-Out Cake

4. the differences that still divide the two sides

仍旧使双方存在隔膜的分歧

5. But he would be wrong to assume that this election indicates a widening racial divide.

WSJ: Michael Vatikiotis: Seeds of Change in Kuala Lumpur

6. Within Eastern Europe, there's also a large divide between public and private sector jobs.

FORBES: Real Estate Lists & Rankings

7. As I will elaborate, I find it useful to divide these tools into three groups.

FORBES: The Crisis and the Policy Response

8. He insisted he was not out to divide the antiwar wing of the party.

NPR: Remembering Eugene McCarthy

9. Unfortunately for Gov. Daniels, there is a bit of an ideological divide on this question.

FORBES: Mitch Daniels on Improving Obamacare

10. There are many people in academia,outside academia, who divide the world essentially into two.

学术界内外,都有很多人,将世界一分为二。幸福课课程节选 : 哈佛公开课

11. An old-established two-party system is giving way to a far more polarising class divide.

ECONOMIST: Honduras's political conflict

12. Many here see Sarkozy as an authoritarian and divisive figure who will aggravate France's social divide.

NPR: Sarkozy Wins Resounding Victory in French Vote

13. By tradition, they divide by 360, not 365, and so you understand that dealers of Treasury bills tend to quote "discounts."

习惯上他们除以360,而不是365,国库券的经销商,习惯于谈论"贴现"金融市场课程节选 : 耶鲁公开课

14. COPE, though also widely seen as too middle-class, is drawing support from across the racial divide.

ECONOMIST: South Africa

15. Once you have a difference that occurs, two cells are difference, those differences can propagate as the cells continue to divide.

一旦产生差异,产生两个不同的细胞,这些差异会伴随着,细胞分裂过程代代相传生物医学工程探索课程节选 : 耶鲁公开课

16. I don't mean divide the world as Asia on the one hand and north America on the other.

我不想划分世界,亚洲在这端,北美在另一端。国际座谈会课程节选 : 普林斯顿公开课

17. In other industrialized democracies this divide is more muddled by regional interests or other factionalism.

FORBES: Side Lines

18. The Great Optimism Divide does not offer much solace to either side right now.

FORBES: The Great Optimism Divide

19. "Her memory will no doubt continue to divide opinion and stir deep emotion, " he said.

BBC: David Cameron: Thatcher an extraordinary leader

20. But studies suggest that cancer cells may use telomerase to divide in abnormal ways.

VOA : special.2009.12.08

21. Like many culture-war issues, attitudes about gun control pretty much evenly divide the electorate.

FORBES: Move up http://i.forbesimg.com t Move down

22. She has done more to divide the Conservatives than anyone else.

她在分裂保守党这件事上起的作用比任何人都要大。

23. Experts continue to debate how best to close this digital divide.

VOA : special.2010.04.12

24. And en route we discovered that we can divide the Periodic Table into metals, 75% which is about 75% of the Periodic Table.

我们发现,我们能够将元素周期表划出金属,大概占。固态化学导论课程节选 : 麻省理工公开课

25. Divide the vegetables among four individual dishes.

把蔬菜分到四个一人份的碟子里。

26. "You can't reunite a city if your comments are going to divide a city, " McKendrick said.

CNN: Nagin apologizes for 'chocolate' city comments

27. We must not allow ideas like political correctness to divide us and cause us to reverse hard-won achievements in human rights and civil rights."

VOA : special.2010.05.09

28. Add them together, divide by five, and you've got the average. Okay?

把它们相加再除以5就是平均数,明白吗?

29. He said different customs and institutions helped unite the country, not divide it.

VOA : special.2009.06.11

30. So if you divide by $10 million, that's a lot of money for each employee.

如果将1000万平分,每个人都能拿到一大笔钱。

31. And the two categories I'm going to divide them into are declarative and imperative knowledge.

我会把它分成两类:,陈述性的知识和程序性的知识。计算机科学及编程导论课程节选 : 麻省理工公开课

32. Read All About Asset Allocation for beneficial information on how to divide you portfolio.

FORBES: Is Cosmo Directing Your Portfolio?

33. They began to divide the country into areas called spheres of influence.

VOA : special.2010.07.29

34. Therefore, when you divide by the mass to get the acceleration, the response of different bodies is inverse to the mass.

因此,当你拿力除以质量得到加速度时,不同物体的加速度与质量成反比基础物理课程节选 : 耶鲁公开课

35. The so-called "town-gown" divide is becoming more apparent across the UK as universities grow.

BBC: NEWS | UK | Education | Bridging the town-gown divide

36. He did not want the nation to divide.

VOA : special.2009.04.02

37. And we want to divide all of that by our wavelength, and to keep our units the same we'll do meters.

我们想用波长除以所有这些,而且保持单位统一我们采用米。化学原理课程节选 : 麻省理工公开课

38. Our question is, which issue is most likely to divide the Democrats in Chicago.

CNN: [answer]

39. q1 So let me just rewrite that as, I just want to divide by q1 everywhere.

分子分母同时除以,现在我写的这些。热力学与动力学课程节选 : 麻省理工公开课

40. Divide ice cream mixture into three and flavor each with the different berry purees.

NPR: Hail to the Chef

41. 4 So even if the correct mathematical answer is 1.4 or whatever, when you divide an int by an int, you only have room in that variable, in the response for an actual integer.

所以即使那个正确的答案是4,或别的数值,当你用一个整型数除以一个整型数,在那个变量的返回值里,只有,存储一个整型数的空间。计算机科学课程节选 : 哈佛公开课

42. They then began to divide into embryos, but none grew past the six-cell stage.

FORBES: Cloning's High Cost

43. The two countries could not agree on how to divide Oregon between them.

VOA : special.2009.02.19

44. We all only have 24 hours per day to divide amongst our various activities.

CNN: Why men should share equally in housework

45. It was a graphic illustration of the breadth of the cultural divide between east and west.

BBC: newswatch banner

46. Divide into groups and use role-play to practise making your request.

通过分组角色扮演来练习提出要求。

47. In America and in Britain, this is seen clearly because the philosophical divide is most clear-cut.

FORBES: Magazine Article

48. We could also take the two eighth notes and divide them into two sixteenth notes and then we get one-a-an-d-two-a-an-d- one-a-an-d-two-a-an-d something like that.

我们也可以继续将八分音符,分为两个十六分音符,一二三四,二二三四,一二三四,二二三四,就像这样聆听音乐课程节选 : 耶鲁公开课

49. The story says he directed the sea to divide so the ancient Israelites could reach the other side.

VOA : special.2010.10.19

50. All the new tournaments are also breaking the ice in the sport's traditional gender divide.

WSJ: Table Hockey, on Ice Since Heyday in 1970s, Makes a Comeback

51. In her speech, she called for national unity: "We are one,we Americans,we're one, and we reject any intruder who seeks to divide us on the basis of race and color.

VOA : special.2010.05.09

52. It is not merely a geographic divide, although they lie over 100km (some 67 miles) apart.

BBC: The Oxford versus Cambridge gloat race

53. The traditional Sales-Editorial divide has also changed, partly because a product team sits in between.

FORBES: Inside Forbes: Building a Bridge For Journalists to Find Their Digital and Social Future

54. I need to divide it by three to get the average.

我应该先除3得到平均数博弈论课程节选 : 耶鲁公开课

55. In the past,he noted, the national government had tried to divide free states from slave states by a line across a map.

VOA : special.2009.04.23

56. If you divide the two of them through you will get 6.02 times 10 to the plus 23 per mole.

如果你除以他们两个,你会得到6。02*10^摩尔。固态化学导论课程节选 : 麻省理工公开课

57. The Allegheny Mountains divide the area from north to south.

VOA : special.2009.07.20

58. Telomeres are necessary for a cell to divide.

VOA : special.2009.10.07

59. For the sake of organization, it's also possible to divide songs into different playlists.

ENGADGET: Whyd mines YouTube, Soundcloud and others for songs Spotify can't deliver (hands-on)

60. We can really divide it into two major parts. The first 12 chapters form a unit that conveys the invasion and conquest.

我们可以将它分为两部分,前十二章,形成了一个集体,表现了侵略和占领。旧约导论课程节选 : 耶鲁公开课

61. Well, sometimes you divide up the land equally, but if that land continues to get smaller and smaller, it will not sustain an additional person, not to mention additional family.

一种做法是,平分耕地,但是如果人口越来越多呢,那平分的田地就不够一人所需,更不必说整个家庭了古希腊历史简介课程节选 : 耶鲁公开课

62. What is interesting is that it no longer reflects the simplistic divide between doubters and believers.

BBC: Europe's summer of argument

63. Yet the explosive growth in the health industry could create a new wealth divide.

FORBES: The Other Healthcare Divide: Healthcare Fluency

64. For Steve Sanzillo, Monday's attack did more to unify the cities than any rivalry could divide.

NPR: In NYC, Strains Of Solidarity With Rival Boston

65. We have so much in common and there are so few issues that divide us.

BBC: EU veto: Cameron says he negotiated in 'good faith'

divide翻译_divide短语搭配_divide权威例句

下载Word文档到电脑,方便收藏和打印~

英语相关推荐

hare是什么意思_hare怎么读_hare的用法_翻译_短语搭配_权威例句

hare的意思是:n. 野兔;(跑狗比赛中的用电力驱动在跑道上奔跑的)电兔(=electric hare) v. <英,非正式>飞跑,疾走 【名】 (Hare)(印)哈雷,(英)黑尔,(法)阿尔(人名)。学考宝为您提供hare是什么意思,hare的翻译,hare的用法,hare的短语搭配,hare的权威例句等查询,让您轻松学单词。
hare是什么意思_hare怎么读_hare的用法_翻译_短语搭配_权威例句
2024年12月25日

back haul是什么意思_back haul怎么读_back haul的用法_翻译_短语搭配_权威例句

back haul的意思是:回程货物:指在旅程的回程上运输的货物或货物。 回程传输:a. 将视频或音频信号以未经编辑的格式直接传输到网络或工作室,通常通过卫星。 b. 所传输的材料。。学考宝为您提供back haul是什么意思,back haul的翻译,back haul的用法,back haul的短语搭配,back haul的权威例句等查询,让您轻松学单词。
back haul是什么意思_back haul怎么读_back haul的用法_翻译_短语搭配_权威例句
2024年12月25日

all the year around是什么意思_all the year around怎么读_all the year around的用法_翻译_短语搭配_权威例句

all the year around的意思是:网络 全年;一年到头。学考宝为您提供all the year around是什么意思,all the year around的音标,all the year around怎么读,all the year around的翻译,all the year around的用法,all the year around的短语搭配,all the year around的权威例句等查询,让您轻松学单词。
all the year around是什么意思_all the year around怎么读_all the year around的用法_翻译_短语搭配_权威例句
2024年12月25日

fix in with是什么意思_fix in with怎么读_fix in with的用法_翻译_短语搭配_权威例句

fix in with的意思是:与……相协调,与……相配合:指与某个团队、计划或日程安排相协调或相配合。。学考宝为您提供fix in with是什么意思,fix in with的翻译,fix in with的用法,fix in with的短语搭配,fix in with的权威例句等查询,让您轻松学单词。
fix in with是什么意思_fix in with怎么读_fix in with的用法_翻译_短语搭配_权威例句
2024年12月25日

hardware是什么意思_hardware怎么读_hardware的用法_翻译_短语搭配_权威例句

hardware的意思是:n. (计算机)硬件;五金制品;装备,设备。学考宝为您提供hardware是什么意思,hardware的翻译,hardware的用法,hardware的短语搭配,hardware的权威例句等查询,让您轻松学单词。
hardware是什么意思_hardware怎么读_hardware的用法_翻译_短语搭配_权威例句
2024年12月25日

brush-pencil是什么意思_brush-pencil怎么读_brush-pencil的用法_翻译_短语搭配_权威例句

brush-pencil的意思是:n. 画笔。学考宝为您提供brush-pencil是什么意思,brush-pencil的翻译,brush-pencil的用法,brush-pencil的短语搭配,brush-pencil的权威例句等查询,让您轻松学单词。
brush-pencil是什么意思_brush-pencil怎么读_brush-pencil的用法_翻译_短语搭配_权威例句
2024年12月25日

painting brush是什么意思_painting brush怎么读_painting brush的用法_翻译_短语搭配_权威例句

painting brush的意思是:画笔:用于绘画西洋画时使用的笔。。学考宝为您提供painting brush是什么意思,painting brush的翻译,painting brush的用法,painting brush的短语搭配,painting brush的权威例句等查询,让您轻松学单词。
painting brush是什么意思_painting brush怎么读_painting brush的用法_翻译_短语搭配_权威例句
2024年12月25日

halt是什么意思_halt怎么读_halt的用法_翻译_短语搭配_权威例句

halt的意思是:v. (使)停止行进;阻止,中断;(口令)立定;跛行;(尤指逻辑或诗韵)有缺陷;踌躇,犹豫 n. 停止,中止;<英>乡间小火车站(只有站台);跛,瘸; 跛,瘸;(口令)立定 adj. 跛的,瘸的 【名】 (Halt)(美、德、英)哈尔特(人名)。学考宝为您提供halt是什么意思,halt的翻译,halt的用法,halt的短语搭配,halt的权威例句等查询,让您轻松学单词。
halt是什么意思_halt怎么读_halt的用法_翻译_短语搭配_权威例句
2024年12月24日
没有更多了?去看看其它内容

热门文章

精选推荐
外语

  • 资源下载
  • 留学