To know everything is to know nothing.

Make hay while the sun shines.46. Pull the chestnut out of fire.46. To know everything is to know nothing.

良机勿失。火中取栗。什么都知道，一如什么都不知道。

For no man knows what misfortunes may overtake you.

因为谁都不知道你会遭到什么不幸。

Helen: I don't know why you couldn't spike it each time.

海伦：我不知道为什么你都扣不了球。

Jones is sure to know about it, he has a finger in every pie.

这事琼斯一定知道，他什么事都插一手。

I don't know anything about that.

关于那个我什么都不知道。

I did not even know what a pancreas was.

我当时都不知道胰腺是什么东西。

This is no secret. It is generally known.

这不是什么秘密。人们普遍地都知道。

I know everything, and it is no use for you to try to cover up.

我什么都知道了，你不要隐瞒了。

I don't know anything about e-commerce.

关于电子商务我什么都不知道。

The farmer did not understand why his children were mute.

农夫不知道为什么他的孩子都是哑巴。

I shall lie low and pretend to know nothing about it.

我将静静地等着,假装什么都不知道。

I don't know anything about it myself except from hearsay.

除听人传说的以外，我什么都不知道。

Every generation needs to know that freedom consists not in doing what we like,

每一代人都应该知道，自由不是想做什么就做什么，

Nobody knows what he can do till he has tried.

任何人都要试一试，才知道他能做什么。

Luo Hang: Really? I know nothing about that, why is it today?

洛杭：真的吗？我一点儿都不知道，为什么是今天？

I didn't know a plantain patch from a kangaroo!

我也不知道什么香蕉种植地，正如我不知道什么是袋鼠一样！

"How do you know that I've not taught you anything?"

“你怎么知道我什么都没教你？”

D. Du Du: Le Le, do you know what it is like in autumn?

都都：乐乐，你知道秋天是什么样的吗？