Now I know what it is to shudder!

现在我知道害怕是怎么回事了！

youdao

I know what it is!

我知道是什么了！

youdao

But I don't think I know what it means anymore.

但我不认为我知道这意味着什么了。

youdao

I do not know what else to do but make the best of a bad deal and shake hands over it."

VOA: special.2009.06.27

I look at something and I know what it is, forgetting that possibly I only know what it is because of a context in which indeed it is not those other things that are linked to it.

而我认知一样东西，很可能并不知道它的本质是什么,而是以它和其他事物的,关系来认知它。

耶鲁公开课 - 文学理论导论课程节选

I know what it's like.

我知道那种感觉。

I'm sorry 实战 - SpeakingMax英语口语达人

"Look, I know what it is like to struggle, " said Romney, a cancer survivor who has multiple sclerosis.

CNN: Romney condemns Obama's 'assault on our economic freedom'

"I know what it takes to make an economy work, " Mr. Romney said.

WSJ: Obama, Romney Campaigns Square Off in Debate Rematch

Do I know what it takes to be successful in this new direction, and am I committed to it 100%?

FORBES: A Surefire Plan to Figure Out What You Really Want