You always want to check your signs at the and because it's so easy to get the sign wrong, and I was hoping that it was right here because I wasn't sure, but it turned out to be right.

我们完成计算时，一定要记得检查符号,因为很容易弄错符号，刚才我就不太确定,是否弄错了符号，检查发现没有问题。

麻省理工公开课 - 热力学与动力学课程节选

Matter of fact, it was right up the street here that I was a waiter

实际上，就是在这条街上做服务生，

我就是超人 - SpeakingMax英语口语达人

All right. So we kind of saw what was happening here, you saw it move a little bit.

好的，我们看稍微看一下,这里发生了什么，你们看到它移动了一点儿。

麻省理工公开课 - 化学原理课程节选

The second question I want to ask is what's the base case? When do I get down to a problem that's small enough that it's basically trivial to solve? Here it was lists of size one. I could have stopped at lists of size two right. That's an easy comparison.

第二个问题是什么是基础条件？,我要将问题分解到何时才使得问题,小到可以解决的基本问题？,这里是当列表的长度为1有时候,我也可以在长度为2的时候停止分解,那是一个非常简单的对比。

麻省理工公开课 - 计算机科学及编程导论课程节选