They got caught. You know why they got caught?

被发现了，你知道为什么会被知道吗？

麻省理工公开课 - 固态化学导论课程节选

I started thinking, you know what, the reason why in the United States we have such a problem,

你知道我开始想什么了吗，我在想为什么在美国我们会出现如此的问题，

发挥创造力的瞬间 - SpeakingMax英语口语达人

Does anybody know why so much time is spent on that? Yes?

有谁知道为什么要在这上面花这么多时间吗,你说

耶鲁公开课 - 基础物理课程节选

Do you understand why we had to do this?

你知道为什么要这么做吗

耶鲁公开课 - 金融市场课程节选

I can see the buildings around here are new. Do you know why?

我发现这里所有大厦都是新的。你知道为什么吗？

伦敦的金融中心地 - SpeakingMax英语口语达人

Do you know why this place is called "Land's End"?

你知道为什么这里被称作“天涯海角”吗？

罗宾·威廉姆斯的家 - SpeakingMax英语口语达人