And when you have an optimal substructure and the local solutions overlap, that's when you can bring dynamic programming to bear.

当你得到一个最优子结构,但局部解决方案有重跌时，你就可以引入动态编程,来解决这个问题了。

麻省理工公开课 - 计算机科学及编程导论课程节选

when you feel upset or when you feel frustrated that something is not going the way that you wish it would.

当你觉得很失落，或者当你因为事情不像你期望的那样进展而感到沮丧时，你也可以使用这个句型。

I'm frustrated 课堂 - SpeakingMax英语口语达人

This becomes really, really important, not just when you're starting a business but when you're trying to grow that business.

这变得非常，非常重要，不仅对创业重要,而且对扩大业务也很重要。

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

So what was your feeling there when you were, of course it's impossible to escape the Israeli-Palestinian conflict when you were in Israel especially. -Yeah.

那么你在以色列的时候又怎样的感觉？,你当然不可能避免巴以冲突,特别是当你在以色列的时候，-是的。

普林斯顿公开课 - 人性课程节选

When you're really tired sleep is what you want to do like when you're really hungry you want to eat.

你累了，就会想睡觉,正如你饿了想吃东西一样。

耶鲁公开课 - 心理学导论课程节选

When you correlate people's preference when they see products with activation in this area, you'll see a nice correlation.

这一区域的大脑活动,同人们在见到商品后的表现，完美地联系了起来。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

I know this is a simple example, but when you mature as a programmer, one of the first things you should do when you sit down to tackle some problem is write something like this pseudo code.

我知道这是个很简单的例子，但是当你们成长为一名程序员后，当你们碰到问题后第一件事情就是,该写一些类似于,伪代码的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

All right, so what are some of themes when you pick up when you see something like that?

当你看到类似的广告的时,你从中发现了哪些主题

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

When you speak about Greeks you will be speaking about something more than merely the fact that they spoke a certain language.

当你谈论到希腊人的时候,你不仅仅说,他们只是讲一种特定语言的人群

耶鲁公开课 - 古希腊历史简介课程节选

When you look at Moscow you see these old traditional, the skyline is dominated by churches, the influence of the Russian Orthodox Church.

在莫斯科,你会看到许多古老的传统教堂,其尖顶高高耸立于天际,即那些受俄国东正教风格影响的教堂

耶鲁公开课 - 欧洲文明课程节选

Or a football player--when you're running down the field, why did you go to this way instead of that way ? when you're running down the field?

或者是问一个橄榄球运动员--当你在操场上奔跑时，你为什么要往这边跑而不是那边呢,当你在操场上跑的时候？

耶鲁公开课 - 金融市场课程节选

If this was tetanus, you got this tetanus vaccine when you were young; you get a boost every five or ten years because your antibody levels are starting to fall.

以破伤风为例,小时候,你接种过破伤风的疫苗,每隔五年或十年要再接种一次,这是因为体内的抗体浓度会下降

耶鲁公开课 - 生物医学工程探索课程节选

Something that would allow us to say that "Well, when you reassembled the watch, ?" is it the same watch when you reassembled? " The tower is not the same tower.

这样我们才能说,“当你重组手表零件后，它还会是原来那只手表吗“,新塔也并非原来的塔了。

耶鲁公开课 - 死亡课程节选

And now let's suppose that your parents are going away for the weekend and they leave you with the following instructions: If it's raining tomorrow morning, when you wake up, you are to close the windows, open the door and let the cat in, phone the grocer and have him send over the following list of groceries. All right.

现在假设你们的父母这周末,离开了，给你们留下了,以下的一些指示：,如果明天早上下雨了，醒来的时候，要把窗户关好，打开门,让猫进来，打电话给杂货店并且让他,送来以下的生活用品，好的。

哈佛公开课 - 计算机科学课程节选

And you want this to continue. And then when you get older and you realize what the museum is about,

你希望这可以延续。当你长大了，你就意识到博物馆是关于什么的，

美国的博物馆教育 - SpeakingMax英语口语达人

Now when you go to jail-- I mean when you go to court, slaves of course can't represent themselves in court at all, they don't have any legal standing.

如果你进监狱。。。,我是说如果你上法院，奴隶当然不能在法庭上代表自己，他们没有任何法律地位。

耶鲁公开课 - 新约课程节选