Everybody, stop! I know what it is you want, and... Here it is!

大家，住手！我知道你们想要什么…就是它了！

youdao

The most important thing is to have a clear goal, to know what it is you want to find.

最重要的事情就是必须有一个确切的目标，一个你知道到底要找什么的目标。

youdao

There is one thing I would like to know – What is it about Tim that you find so irresistible?

有一件事我想知道–蒂姆到底有什么让你觉得那么不可抗拒？

《柯林斯英汉双解大词典》

I think everybody feels something there, you don't know what it is.

VOA: standard.2009.12.15

It's very simple. It's this: if I know what I'm doing, it is almost inevitably the case that you would know also.

实际上十分简单：,如果我知道我创作的是什么，那么你很可能也知道我创作的内涵。

普林斯顿公开课 - 人性课程节选

To figure out even what this thing is, let alone how to use it properly. So, you know, I'm sympathetic.

就连认出这是什么东西（都很困难），更别说正确应用它了，所以我很同情这点。

经常犯的失误 - SpeakingMax英语口语达人

When are you deemed old enough to know what it is you would like to study and don't get useless figures shoved down your throat by people who seem to think that everyone in the world cares about politics and economics so they all will study it, regardless of whether they are studying art?

BBC: The A-level student

After all, the more people who know what it is that you want, and what you can do, the more who can help you achieve it.

FORBES: Time To 'Toot Your Horn!'

"I don't know what it is, but you know, it just seems when a team makes a run on us, man it just takes the air out of us, " he said.

WSJ: Parker, Spurs dominate 2nd half in rout of Nets