嗯，我每天都吃不同的东西，所以我不记得了。

Uh, I've been eating different things every day so no, I don't really remember.

youdao

所以我们都有可能做噩梦，只是不记得罢了。

So we are all probably having disturbing dreams and just not remembering them.

youdao

我不记得我有没有做过这样的事，所以我不能否认。

I can't remember doing it so I can't deny it.

youdao

Does anyone have that in their brain somewhere for ready use? I don't, in fact, so it's actually okay if you don't know all your common ions, if you missed that part.

你们有谁有印象它们有什么用吗？,我当时是不知道，所以如果你们不记得,这部分也没有关系。

麻省理工公开课 - 化学原理课程节选