Plate tectonics is the area of science that explains why the surface of the Earth changes and how those changes cause earthquakes.

VOA: special.2010.01.12

And why is that? Within the perspective of Milton's free-will theology, sin can't exist as an external reality.

为什么呢？从弥尔顿自由意志的学说的角度来看，原罪是不可能以永久现实的形式存在的。

耶鲁公开课 - 弥尔顿课程节选

And he knew that about himself and I think that's why maybe he turned out okay at the end.

他了解自己，我想或许是因为这个原因，他最后有了一个好结果。

喜欢的书 - SpeakingMax英语口语达人

But she adds that there may be lots of reasons why more women apply to colleges, and why colleges admit more women.

VOA: special.2009.11.19

We will always have r equals zero in these radial probability distribution graphs, and we can think about why that is.

在这些径向概率分布图里,总有ｒ等于０处，我们可以考虑为什么会这样。

麻省理工公开课 - 化学原理课程节选

"And,it is strange that if you hate my brother so much, why would you marry his sister!"

VOA: special.2009.06.27

The performance of family conversation is like acting, and that is why Zooey impersonates Buddy; he's acting.

家庭对话的表现则像是表演，那是为什么左伊模仿巴蒂，他在表演。

耶鲁公开课 - 1945年后的美国小说课程节选

That is why author and illustrator Rosalyn Schanzer chose to write the children's book "What Darwin Saw: The Journey that Changed the World."

VOA: special.2009.02.27

Doesn't respond as well to killed vaccines, and that's why the Salk vaccine has to be injected at a high dose.

但却对灭活的疫苗没有那样强烈反应,这也是索尔克氏疫苗为何,必须大剂量注射的原因

耶鲁公开课 - 生物医学工程探索课程节选

And that's why the American Recovery and Reinvestment Plan won't just throw money at our problems.

VOA: special.2009.01.09

You find it in datable places and that's why we can give this some kind of date, such as in Egypt.

你会发现它属于一个可确定年代的地区,这正是可甄别此文明所属年代的原因,例如在埃及

耶鲁公开课 - 古希腊历史简介课程节选

They say there are other reasons why the large animals and people from that period disappeared.

VOA: special.2009.01.20

Internal communication is just the coordination around what we're doing and why we're doing it and what our goals are and why the goals are like that. That's it.

内部的交流就是协调我们手头的工作,搞清楚我们为什么在做这些工作,为什么我们有这些目标，就是如此。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

That's why creating jobs has to be our number one priority in two thousand and ten."

VOA: special.2010.01.30

on the one hand, " and "Why are the things that are missing ?" from the experience machine worth having?"

此外还有，“为什么体验机器里没有的东西,“值得拥有“

耶鲁公开课 - 死亡课程节选

"And that experience was life changing. And that's why I decided to start a charity."

VOA: special.2009.08.10

And that's why, I ended up using a multiplicative factor, rather than an additive factor.

这也是为什么，我最后使用一个倍增因子，而不是用一个加法因子。

麻省理工公开课 - 计算机科学及编程导论课程节选

He says that as a child he did not understand why his father did not live with him and his mother all of the time.

VOA: special.2009.12.13

And one reason why we know that is in studies like the IAT, the Implicit Attitudes Test.

之所以这样说，是因为,像内隐态度测试这样的实验。

耶鲁公开课 - 心理学导论课程节选

Then the gray-haired woman spoke: "So,you see,that's why I come and put flowers here.

VOA: special.2010.05.15

But before telling you about this let me sort of Go through some of the hypothesis that we have and That we are now testing about why the subject is Difficult and why these materials assembled what We have assembled them might be useful.

但是谈那之前我要说说,我们之前的一些假设,我们现在正在测试为什么这个学科很难,以及为什么我们整合这些资料是有用的,我们认为把它们整合起来或许有用。

麻省理工公开课 - 媒体、教育、市场课程节选

And the kind of sedentary lifestyle that we lead, are one of the reasons why we have every day the number of obese people in India increasing."

VOA: special.2010.05.12

It's a difficult thing to do these things and that's why we need invention.

做这些事很难,这正是我们需要发明的原因。

耶鲁公开课 - 金融市场课程节选

And he said to us, "Why do you sit there like that?

VOA: special.2010.05.02

That's including me and that's why I went into the subject in the first place cause I was aware of how little I really know of this.

那也包括了我,所以我首先研究这个主题,因为我意识到,我对这个主题知之甚少。

麻省理工公开课 - 电影哲学课程节选

Well,I got them saddles built, and then somebody would say 'Hey,why don't you build me a saddle?'" That was how Nancy Martiny got into the saddle making business twenty years ago.

VOA: special.2011.01.31

Yeah, that's exactly right, and that's why we have a constitutional amendments.

是的，那非常正确，正是因此我们有宪法修正案。

耶鲁公开课 - 公正课程节选

"You can imagine the impact that this would have on whole communities throughout the country and why there would be such passions that have been passed on from generation to generation even at the remove of one hundred fifty years."

VOA: special.2011.04.09

That line had clearly been crossed and helps explain why it was that in a country in which there weren't ten people who wanted a republic in 1789.

绝对主义和专制主义的区别已经不存在,这解释了为何在这个国家,1789年时只有不到十人想建立共和制

耶鲁公开课 - 欧洲文明课程节选

And that's why it lacked the impact on academia.

所以它在学术上影响很小。

哈佛公开课 - 幸福课课程节选