I have great faith in you—I know you'll do well.

我对你有信心—我知道你会干好的。

《牛津词典》

I don't know how you have the nerve to show your face after what you said!

真不知道你说了那些话以后怎么还有脸露面！

《牛津词典》

I didn't know I'd have to make a speech—I just had to wing it.

我不知道还得讲话，只好想到什么就说点什么。

《牛津词典》

But we certainly didn't have goals. I don't know if we had ever heard of Grammys at that point.

VOA: special.2010.04.19

I know I have the wrong glasses on the see hands up too, but... STUDENT: PROFESSOR: Who said it?

我知道就算我带错了眼镜,也能看到举手，但是…,学生：【不解中】,教授：谁说的？

麻省理工公开课 - 计算机科学及编程导论课程节选

And I do know, as I have worked as a publicist, that people do, celebrities do call paparazzi

而且我也知道，因为我曾做过宣传的，有的人，名人，确实会给狗仔队打电话，

溺爱是一种伤害 - SpeakingMax英语口语达人

"In New Zealand I know will have to up my game and I know I have the ability to do that, " she admitted.

BBC: Commonwealth champion Katrina Hart targets world stage

Before I start to write, I have to know one thing: So, I guess Beyonce was never actually part of this, eh?

FORBES: The Action Movie Blog Post

But I have to tell you: I know I have never looked cooler or felt slicker while wearing a pair of white-yellow cotton pants than I did yesterday morning at the Beverly Hills Hotel.

FORBES: My Ethical Dilemma