He says,at the end of the day, you are sure to make at least three or four dollars, to sustain your family.

VOA: standard.2010.04.22

I mean I'm not going to try to trick you or throw in things just to make sure you come to class, but it's usually a pretty good policy.

我不是和你们耍手段,也不是为让你们来上课而随便说说,但这通常是个好方法

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

if at any point you've got something you want to ask about or some two bits you want to add, raise your hand, wiggle it around, make sure I see you.

任何时刻如果你有想问的东西,或者你想要加上什么东西，请举手，摇晃起来，确保我能看见。

耶鲁公开课 - 死亡课程节选

So gone through all of these dimensions, because I want you to make sure that you could understand that when you are creating an entire course or an entire educational engagement, it is very important to think about both the explicit and the implicit purposes.

在分析完这些方面后，我希望你们,务必明白,在设计整个课程,或是教育参与时，考虑教育的表层目标和,深层目标是十分重要的。

麻省理工公开课 - 媒体、教育、市场课程节选

s up to the Fannie Mae or Freddie Mac to collect mortgages over the next thirty years So let me make sure I have the sequence right Housing prices extremely high among other entities congress place pressure on the banking systems they were ordinary banking systems to make loans more and more affordable.

结果是房地美和房利美，And，it’,在过去三十年收集全国贷款,让我整理一下顺序,房价很高,及其他政府机构,给银行压力,即普通银行,放贷给民间,让更多人买得起。

斯坦福公开课 - 经济学课程节选

But notice what this does. The first thing it does is, it says, let's check and make sure x is greater than or equal to 0. If it isn't, notice what's going to happen. None of that block is going to get executed, and it's going to come down here and print out a useful piece of information, which says, hey, you gave me a negative number. I don't know how to do this.

做的是和以前一样的事情,但是注释它做了什么，第一件做的事情就是,程序说，要去检查并且确信x是大于等于0的，如果不是的话，请注意会发生什么,下面的代码都不会被执行,程序会到这里来然后显示一些有用的信息,信息会说，嘿，你给了我一个负数,我不知道该怎么弄这个了。

麻省理工公开课 - 计算机科学及编程导论课程节选