“Business”除了生意，买卖的意思，在口语中，它使用的范围非常广。比如一个固定表达：

None of your business.
雨女无瓜（与你无关）

这里的business和生意一点关系都没有！

那have no business是什么意思呢？

Meaning
1.to do something that you should not be doing
做你不该（无权）做的事

2.to have no right to be somewhere
不该（无权）去某个地方

在句中通常用have no business doing sth.

Example Sentences:

You have no business discussing my personal life with your friends.
你无权和你的朋友讨论我的私生活。

You have no business coming to my office.
We will deal with this situation when I get home.
你不该来我办公室。
回家后我们会处理这个情况。

You have no business telling my boss that I was late to work.
你无权告诉我老板我上班迟到了。

You are just trying to cause trouble.
你只是想惹麻烦。

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