and if you've never been, don't do this, it's largely because there are these very sensitive moving parts and there are relatively few moving parts left in today's computers.

如果你没做过，不要做这些事情，主要是因为电脑里面有一些很敏感,且高速运转的部件,以及相对不运转的部件。

哈佛公开课 - 计算机科学课程节选

we are developing a code for key risks or things that might happen and disagreements, and

我们就在制定一套管理主要风险的准则，预防类似事情以及矛盾的发生，

又有趣又奇特的课堂 - SpeakingMax英语口语达人

These are called concept sheets and they're one to two pages of things that you write about what's going on in the class.

你们需要写一份一到两页纸的观点报告,主要写一些与课堂内容有关的事情

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

What happens in development isn't for the most part the growth of new neurons.

发展中所发生的主要事情,并非是新神经元的生长

耶鲁公开课 - 心理学导论课程节选

Let me make a remark about questions, which is--today's mostly business.

让我对问题做一个评论，目前最主要的事情是什么。

耶鲁公开课 - 死亡课程节选

And like private schools like, that's the main thing like, I have a religion class,

像在私立学校呢，那是主要的事情，我就有宗教课，

公立学校和私立学校 - SpeakingMax英语口语达人

I've certainly written code that has this problem, I've tried to use my own code that has this problem, and good to us, right, good hygiene, I'm going to use that word again here, of getting into the habit of writing defensive code up front, it's part of that collection of things that you ought to do is a great thing to do.

我举手了吧？,我当然写过犯这种错误的程序了,我也尝试过应用含有这种错误的代码，不错，好的卫生，我还是要用这个词,对我们有帮助，养成写防卫性,代码的好习惯，是你应该做的,一系列事情之一,也是我们日后要做的主要的事情。

麻省理工公开课 - 计算机科学及编程导论课程节选