细绳没挂东西,因为不受重力影响,所以它不施加张力，你们知道这一点。

There's nothing hanging on it and the string has no weight so there's no tension there-- you can see that.

youdao

但是我们要面子，我们的思维很简单，这一点，你们知道，我们也知道。

But we are proud, simple creatures. You know that.

youdao

你们知道这些都是事实，因为你们每一天都在证明这一点。

Now, you know these things are true because you prove them every single day.

youdao

And you should know that a 2 s is larger than that, and a 3 s is even larger, and of course, hopefully as we go to 4 and 5, you would be able to guess that those are going to get even larger.

你们要知道２ｓ比这更大一点，３ｓ就更大，当然对于４和５,你们可以猜到,它们就会更大一些。

麻省理工公开课 - 化学原理课程节选

I think the more we think about it, the more we realize that we only know what it is if we know the system that it belongs to, which is to say, all of the things related to it which it is not. Right?

你们越仔细想这一点，就越明白，我们只有知道事物所属的符号系统,才能认识事物，所有事物都是和同一符号系统中的反面相关的？

耶鲁公开课 - 文学理论导论课程节选

I stress it in particular because I know you're all going to get into this stage; you've got a problem set due in a couple of hours, you're still writing the code, you don't want to waste time, and I'm going to use quotes on "waste time", doing those extra things to do the defensive programming, you just want to get the darn thing done.

我特别强调了这一点,因为我知道你们都会慢慢成为程序员;,你在写代码过程中造成了一系列的错误，你还在写代码，你不想浪费时间，我想把“浪费时间“用引号圈起来，浪费时间来做因为防卫性程序设计，而带来的这些额外的事情,你只想赶紧把程序写完，这不是一个好习惯，因为当你做完回头。

麻省理工公开课 - 计算机科学及编程导论课程节选