No, I don't know the room number.

不，我不知道房间号。

《柯林斯英汉双解大词典》

No comment. I don't know anything.

无可奉告。我什么也不知道。

《柯林斯英汉双解大词典》

No, I don't know his number—I have quite enough trouble remembering my own.

不，我不知道他的号码，我光记自己的号码就够困难的了。

《牛津词典》

Montclin did not move. "You know as well as I do that it is no use to tell Athnaise anything,"

VOA: special.2009.06.27

So it's by no means do I mean to suggest, "Oh, here's everything you need to know about the subject."

所以我绝不是在暗示,关于这个话题,你需要知道的就这么多

耶鲁公开课 - 死亡课程节选

And you friend says, "Well, you know I was kind of a nerd in high school. No one really liked me."

你的朋友说“呃，你知道，我在高中时是个书呆子。没什么人喜欢跟我打交道。”

I used to 课堂 - SpeakingMax英语口语达人

And I no longer know what to tell young writers about how to get into that world.

NPR: Could You Be the Great American Novelist?

No, I know of no -- why, when we could just do it right here would we go all the way to -- go to Des Moines?

WHITEHOUSE: Press Briefing

You know, I had no idea that I was, you know, that I was doing what I was doing and it became a scratch.

NPR: The South Bronx Sound, from Mambo to Hip-Hop