Why is cancer one of the leading killers in the U. S. now but wasn't even on the charts in 1665?

为什么癌症现在是美国人的头号杀手,却甚至没有在一六六五年的名单中出现

耶鲁公开课 - 生物医学工程探索课程节选

And then the director looks at you and says, "What? Why weren't you memorizing your lines?"

然后导演盯着你说，“什么？为什么你都没有在记单词？”

I've been 课堂 - SpeakingMax英语口语达人

Why doesn't -- this is one way of putting the question -why doesn't Apollo harass or bother Milton at the end of Lycidas in the same way that he harasses Milton at the poem's beginning?

为什么-这是提出问题的一种方式,为什么阿波罗没有在诗歌的最后以同样的方式,不断烦扰着弥尔顿呢？

耶鲁公开课 - 弥尔顿课程节选

But more about that. I'll talk about that a lot and try to explain and try to explain there was no revolution in England in 1848.

但更多的,我会经常提到,并解释,为什么英国在一八四八年没有发生革命

耶鲁公开课 - 欧洲文明课程节选

Why does an act of consent make such a moral difference, that an act that would be wrong taking a life without consent, is morally permissible with consent?

为什么征得了同意，就能在道德上如此不同呢，没有征得同意就杀人，在道德上是不允许的，征得同意就是允许的吗？

耶鲁公开课 - 公正课程节选

Why didn't you think of putting wheels under it?

为什么你没有想到在下面加上轮子呢？

耶鲁公开课 - 金融市场课程节选

That's why in the earlier models of the atom, they're not horrible to sometimes think about just each n value as a little ring around.

这就是为什么在早期原子模型中，人们没有感觉到把每一个，n，都想象成,一个绕核的小圆圈有什么不妥。

麻省理工公开课 - 化学原理课程节选

That's why when he talks on and on, it's as if Franny isn't even there listening to him.

那就是为什么当他一直说呀说，即使弗兰尼并没有在听。

耶鲁公开课 - 1945年后的美国小说课程节选

Keep in mind we do have this p orbital here and it's coming right out at us. And this p orbital is here, but it's empty, it doesn't have any electrons in it, that's why we don't have to worry about it in terms of getting our electrons as far away from each other as possible.

他们程120度角互相远离,这样它们离得最远，记住我们这里确实有个p轨道，它朝向我们，这里有个p轨道，但它是空的,里面没有电子,这就是为什么我们在考虑。

麻省理工公开课 - 化学原理课程节选