This means you should not risk losing something you have by trying to get more of something you do not have.

VOA: special.2010.06.13

Do you have a visceral sense, "oh, don't do that"? If you do, you were probably taught, like me: "never, never damage a book.

你们想发自肺腑地说一句：“哦不，不要这样“吗，如果是，那你们和我从小被教育的一样：绝对不要损坏书本。

耶鲁公开课 - 1945年后的美国小说课程节选

It's got exercises for you to do so at the end of each chapter, you do have a task to do.

里面为你准备了练习，所以在每章的结尾，你都有任务要完成。

英语写作：技巧 - SpeakingMax英语口语达人

But you do have to remember by butterflying, you are cutting down the overall height of that root ball.

VOA: special.2011.04.19

Try to imagine-- can you do that or can you not do that?-- try to imagine a round square.

试着去想象,你可不可以这样,试着去想象一个圆的方形

耶鲁公开课 - 死亡课程节选

He told the president, "You do not know the dishonest purposes of those men as well as I do."

VOA: special.2009.08.13

One of the things we want to help you do is identify the different classes of algorithms, what their costs are, and how you can map problems into the most efficient class to do the computation.

我们想要教会你们的事情之一就是,学会辨别不同种类的算法，它们的代价是怎么样的，以及怎么样把问题映射到,最有效的算法种类中去做计算。

麻省理工公开课 - 计算机科学及编程导论课程节选

You do not have to dress to the nines, or wear your best clothes, for this kind of work.

VOA: special.2009.07.26

Could Milton actually have believed that poetic success was in some way contingent on what it is that you do, or what it is you don't do, with your body?

他真的信,诗的成功是某种程度上取决于你对你的身体，做了什么或没做什么吗？

耶鲁公开课 - 弥尔顿课程节选

So the controversy is how do you do that." He says the current debate has deep roots in the Constitution.

VOA: special.2011.07.15

So you can't do this, because you're going to lose track of the numbers if you do that.

你不能这样做，因为你那样做，你将会和,这些数字失去联系。

哈佛公开课 - 计算机科学课程节选

In a poker game you do not want to let your opponents know if your cards are good or bad.

VOA: special.2009.11.22

And there're different people who have different tastes about what you do with this piece and that piece of land how do you approach this political issue and that issue.

不同的人有不同的喜好,在应该对这一国及那一国实行何种策略的问题上,在如何解决这一以及其它政治问题上意见都不同。

普林斯顿公开课 - 人性课程节选

ALLEN: " Well,at two o'clock, our billing changes." SECRETARY: "Well, what kind of an act do you do?"

VOA: special.2009.03.09

If my advice is lost in the wind and you do not do as I wish, I do not recognize you as my son."

如果你辜负了我对你的期望,胆敢把我的话当耳边风,我就绝不认你这个儿子"

耶鲁公开课 - 欧洲文明课程节选

If you do not see any big animals near the river, Mist can tell you about birds instead.

VOA: special.2009.08.19

Now, there's something you do that's so obvious you probably don't even know you're doing it.

现在,你做了件你自己都未必意识到的,超级无聊的事情

耶鲁公开课 - 心理学导论课程节选

Maybe even lots of snow. If you do not have to drive in it or remove it, snow can be very beautiful.

VOA: special.2009.01.26

But I went away from political science because I realized that there are a lot of parallels between what you do in politics and what you do in government and writing policy and laws and what you do in programming.

但我放弃了政治学,因为我意识到,在政界和在政府里,编制政策和法律,和编程虽然非常相似。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

And if you do, here is a question you can answer: Who do you consider a "folk genius?"

VOA: special.2010.01.18

You do the reading before class, you come to class, and you do the homework.

在上课前预习,在上课时认真听讲,课后好好做作业

耶鲁公开课 - 生物医学工程探索课程节选

Anderson then told the southerners, "If you do not shell us to pieces, hunger will force us out in a few days."

VOA: special.2009.08.06

And on Friday in class, at the beginning of class, I'll go over just in all the detail you could possibly imagine everything you need where it is, what you do, what kind of calculators you can bring, which by the way are any calculator.

在周五那节课开始的时候，我会详细地告诉大家,你们所能想到的,在哪考，你要做什么，什么样的计算器可以带，顺便一提的是，什么样的计算器都可以。

麻省理工公开课 - 化学原理课程节选

Well,I hope you do a good job,Colonel. If I do not, you will have my profound apologies.

VOA: special.2009.03.22

They said--one of the lessons they were told is, never cut a dividend unless you do it as a-- you could do a one time only dividend.

他们说,他们学到了一点,永远不要停止分红,除非你,除非你只是一次性分红

耶鲁公开课 - 金融市场课程节选

And when someone tells you that the cards are stacked against you, he is saying you do not have a chance to succeed.

VOA: special.2009.11.22

This is real, unlike the Joule coefficient which is very small so that most gases have tiny Joule coefficients. So if you do a Joule experiment, you hardly measure a temperature change. With real gases, here you do actually measure it. You can feel it with your finger on your bicycle tire.

系数那样小以至于,大多数气体的焦耳系数,都很小，所以如果你做焦耳实验,很难测量出温度的变化,对于真实气体，你可以测量它，你能通过手指按在,自行车轮胎上来感觉到它。

麻省理工公开课 - 热力学与动力学课程节选

"You are your brand. So everything you do online reflects who you are personally and professionally."

VOA: special.2011.05.13

So when you do that,you have to be punished.

如果偷吃禁果,就要受到惩罚

耶鲁公开课 - 古希腊历史简介课程节选

But even if you do survive-- let's the ground floor-- even if you do survive, you would lead a life of constant frustration-- refusing to accept something that is there whether you like it or not.

即使你幸存下来-,比如你在一楼-,就算你真得幸存下来，你的生活将是处处受挫-,拒绝接受现实事物,不论你喜欢与否。

哈佛公开课 - 幸福课课程节选