Don t you know that its true?

难道你还不相信它是真的吗？

youdao

Don t you know that little girls arent supposed to come into the bathroom when a little boy is using it!

难道你不知道当一个男孩在使用洗手间的时候女孩子是不可以进来的吗！ ？

youdao

Don "t you know you are wasting time?"

难道你不知道你这是在浪费时间吗？

youdao

Stay home. Don't you know your poor old mother sits there, night after night, waiting to hear your steps on the stairs?"

VOA: special.2009.07.19

Obviously we don't expect you to know exactly what the distances are, but you should be able to compare them relatively.

当然我们不要求你么,要能知道具体这些位置是多少，但你们要能够相对比较它们。

麻省理工公开课 - 化学原理课程节选

It's called, I don't know if you guys speak any Japanese, but it's called Bungo, the thing that we're focusing on.

我不知道你们是否会日语，但我们主要学习的东西被称作“豊后”。

最喜欢的一门课 - SpeakingMax英语口语达人

One of the main problems with looting is that if a site is undiscovered, you simply don't know what you don't know.

CNN: Opinion: Illegal antiquities trade funds terrorism

You just don't know in the Derby because you don't know who's going to get into racing trouble.

NPR: Louisville Coach Chasing Derby Win As A Co-Owner

You don't have it now -- you know you don't have the House votes, I know that.

WHITEHOUSE: Press Briefing