It means taking a rag or a towel and cleaning something up.

这意味着拿一块抹布或一条毛巾来清理一些东西。

So, " straighten up" or " straighten out" can have the same meaning when we're talking about behaving better or cleaning something up.

因此，当我们谈论表现得更好或清理某些东西时， “整理” 或“整理” 可能具有相同的含义。

But you should know that sometimes we use the noun or noun phrase in between " clean" and the short word " up, " as in " clean something up."

但你应该知道，有时我们会在“clean”和“up”之间使用名词或名词短语，比如“clean something up”。