Let's get to the point.

让我们来谈要点。

I'm afraid I can't.

恐怕我不行。

I couldn't care less.

我不在乎。

It's her birthday and she wants to gives us all a treat.

这是她的生日，她要款待我们大家。

What you said is beyond me.

你说的话我无法理解。

He is hard to please.

他是难以取悦的。