I am sure you believe me when I tell you that I have not known any real joy for years.

当我告诉你，我多年来都不知道什么是真正的快乐时，我知道你相信我。

youdao

Do not do that which you would not have known.

不要干你本来不知道的事。

youdao

We've known since antiquity that you could take gold, and you can hammer to very, very thin foil.

我们从很久以前就知道，你可以能用锤子把金敲成非常非常薄的箔片。

youdao

Maybe you like old songs from the nineteen fifties or sixties that are still well known and popular today.

VOA: special.2010.06.06

I'll bet even all of you can remember songs that you have known all your life, but not other things.

我打赌你们很容易就能想起你们曾经,听到的歌曲,但别的事就很难

耶鲁公开课 - 古希腊历史简介课程节选

People tend not to realize that the first question you should always ask yourself, is this really just something that's well-known in disguise?

已解决问题呢？,这是一个最短路径问题吗？,这是一个最近邻居问题吗？

麻省理工公开课 - 计算机科学及编程导论课程节选

As for Apple, if you were their hiring manager, how the hell would you have known that Phil Schiller was going to become the Marketing guru of the preeminent marketing company?

FORBES: How Do Apple and Google Think of Talent Differently?

That's the reason that they can feel comfortable because today you can learn as much about the company in the emerging market as you could of some company that you might not have known very much about that was a medium-size company on the other side of America.

FORBES

You've known about that one for months, and you know it won't be cancelled.

ECONOMIST: Business travel