我相信你们都知道回收利用的重要性。回收利用是指回收旧物品，并且把它们变旧为新。

I'm sure you all know how important recycling is. Recycling is when you take old things and turn them into new things.

youdao

我相信你们都知道，莫里森既是一位既受欢迎又备受尊敬的作家，要同时做到这两点并不容易。

As I'm sure you all know, Morrison is both a popular and highly respected author and it's not easy to be both.

youdao

我相信你们都知道我最喜欢的歌曲。

I am sure that you have known my favourite song.

youdao

Now,as you know,I don't believe in souls.

你们都知道，我是不相信灵魂的。

耶鲁公开课 - 死亡课程节选