matter 当动词用，表示
事关紧要，要紧
eg. It doesn't matter.
It doesn't matter to me what you do.
matter 当名词用，含义是 事情，问题，事态，情况，物质...
eg. What is the matter with you?
你怎么了？
It is a matter of time. 是时间问题。
To make matters worse , his parents
turned up .情况更糟糕的是他的父母到场了。
You'd better study the properties of
matter.你最好研究一下物质的属性。
matter 组成的短语
as a matter of fact 事实上
be a different matter 另当别论
no matter 无关紧要
no matter what/ who / how ...引导让步状语从句
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