I know what to do.

“我知道该怎么做。”

You know what I mean?

你知道我的意思吗？

I don't know what to do.

我不知道该怎么办。

I don't know what to do!

我不知道该怎么办！

You don't know what it is.

你不知道那是什么。

And I know what it's about.

我知道那是什么。

Tyra didn't know what to do.

泰拉不知道该怎么办。

Do you know what a resolution is?

你知道什么是决心吗？

I don't know what I'm going to do.

我不知道我将要做什么。

I don't know what's meant to happen now.

我不知道接下来会发生什么。