So when you're writing a program in this language and many others, if you wanna make a comment to yourself or for other people who are reading this with their TF or fellow colleagues, you use what are called comments.

当你用这样那样的语言写程序时,为了便于自己或他人,阅读我们写的代码，我们必须得做一些注解,这就是所谓的注释。

哈佛公开课 - 计算机科学课程节选

It's something that we have to do over and over again, that is, making up the world.

这是我们必须反复不断做的事儿，也就是说，创造这个世界。

耶鲁公开课 - 现代诗歌课程节选

So in order to rotate a double bond, you have to actually break the pi bond, so essentially what you're doing is breaking the double bond.

为了能够旋转双键，你必须打破一个π键，本质上我们要做的就是打破双键。

麻省理工公开课 - 化学原理课程节选

So what we have to do, of course, is take it in to the lab and do this in a more systematic way with random assignment.

因此，我们必须做的是，把实验带回实验室,在随机安排下，更系统地做这个实验。

耶鲁公开课 - 心理学导论课程节选

That's a decision of the management of the company and we have to understand how they make that decision and what that means to people who are valuing stocks.

这是公司管理层的决定,我们必须了解他们,是如何做这个决定,以及这个决定对股评家的意义

耶鲁公开课 - 金融市场课程节选

Now, in that Northern society and here we're using labels pretty loosely, but so be it the northern states; and well I'll leave the outline up for the moment. No I won't.

现在,在北方社会,现在我们标记做得很散,但必须这样,北方的州,我呆会会给你们一个大纲,但不是现在

耶鲁公开课 - 美国内战与重建课程节选

All right, so I did this not at all purposely, but this can point out for you that you need to make sure that the number of electrons that you have in your molecular orbital does match up with the total number that you have in your atomic orbitals.

我并不是故意这么做的，但这告诉我们必须要保证,分子轨道里的电子数,和原子轨道里的,总电子数能对上。

麻省理工公开课 - 化学原理课程节选

He says in The Bridge, he asks the bridge to lend a myth to God, and he suggests that this is something that every age must do because our names for God are always metaphors, poems, something imagined, acts of speech.

他在《桥》中写道，他请求大桥借与上帝一个神话，他暗示到有些事情是每个年纪的人都必须做的,因为我们给予上帝的名总是一些隐喻啊诗歌啊，一些想象的事物，对言辞的表演。

耶鲁公开课 - 现代诗歌课程节选

We make software; we make technology; we're innovative ,but so are they So, what we really have to do is become a lot more productive and we have to make our companies a lot more competitive. Today, I feel we're losing that edge.

我们生产软件；发展工业技术;,我们有创新能力，但他们也有,所以，我们现在必须要做的就是提高生产效率,我们必须提高我国公司的竞争力,现在，我觉得在这方面我们正在丧失竞争优势。

耶鲁公开课 - 金融市场课程节选