此处所讲mate作为动词，表示要紧，重要

1. -(to sb)(不用于进行时)

The children matter more to her than anything else in the world.对她来说，孩子比世界上其他事情都重要。

It doesn't matter to me what you do.你做什么对我不重要。

2.matter做不及物动词

What did you say?你说什么?

Oh, it doesn't matter.哦，没什么。(没有必要重复刚才说的话）

I'm afraid I forgot that book again.恐怕我又忘拿书了。

It doesn't matter.没关系。(没有必要担心忘记拿书。)

What matters is that I spent my own money.重要的是我花的是自己的钱。

As long as you're happy, that's all that matters.只要你开心，其他事情都不重要。

After his death, nothing seemed to matter any more.他去世后，什么事情都不重要了

3.Matter+从句

Does it really matter who did it?谁做的真的很重要吗?

It didn't matter that the weather was bad.天气是好是坏不重要。