They were selling that in ancient Rome, but you might think, but why just for burial?

人们在古罗马时期销售丧葬险,你可能会想,为什么只有丧葬险

耶鲁公开课 - 金融市场课程节选

You wonder why would it be that the whole western half of the U.S. gets only or the western third of the U.S.

你也许会质疑，为什么,美国整个的西部一半只有一个,或者说美国西部的三分之一。

耶鲁公开课 - 金融市场课程节选

One of the things you kind of speculate about, and wonder about, why did some cities send out lots of colonies, some cities send out only a few, and others none at all for quite a while.

也许你感到疑惑的一件事是,为什么有些母邦派出了大量移民,另一些只有一些移民,还有其他母邦在很长时间根本没向外移民呢

耶鲁公开课 - 古希腊历史简介课程节选

All right, so if we think about b h bond here, again, it's the sigma bond, and we're going to say it's a boron 2 s p 2 hybrid orbital interacting with a hydrogen 1 s orbital.

这可以告诉我们，为什么它倾向于周围只有6个电子，好了，考虑一下这里的BH键,同样的，它是sigma键,我们说。

麻省理工公开课 - 化学原理课程节选

So the question was, why is this return down at this level, it says, well if I ever execute out of this FOR loop, I get to the end of the FOR loop without hitting that branch that took me through the return, then and only then do I want to actually say, gee, I got to this place, there isn't any value to return, none I'm going to return none and none.

问题是，为什么它是在这个级别上返回值呢，意思就是如果我出了这个for循环,就意味着我运行的过程中没有走到任何,带return的支路上去,这时也只有这时我才能说天呐,我终于走到这儿了，这时不会返回任何值，只会返回none和。

麻省理工公开课 - 计算机科学及编程导论课程节选