Talk up your friend to other people.

向其他人称赞你的朋友。

They kept the talk up until midnight.

他们一直谈到午夜。

I want everyone here to talk up our upcoming dance.

我希望这儿的每个人都为我们即将来临的舞会做宣传。

If you think that wasn't fair, why didn't you talk up?

如果你觉得这不公平，为什么不直说呢？

So if I talk up here in my nose, you can hear the difference.

如果我把声音提到鼻子这儿，你可以听出不同。