about后加什么动词

举例：

1.大约；左右

It costs about $10.这大约要花10元钱。

2.关于；对于

Tell me all about it.把这件事全部告诉我。

3.目的是；为了；涉及…方面

What was all that about?这到底是怎么回事?

4.忙于；从事于

Everywhere people were going about their daily business.无论哪里人们都在忙着干日常工作。

5.将近；几乎

I'm just about ready.我就要准备好了。