过

过

"过" means "to pass," "to cross," "to exceed," or indicates a completed action/experience.

In this sentence, '过' is used to indicate an experience someone has had in the past, emphasizing the occurrence of the action at some point previous to now.

我去中国旅游过。

I have travelled to China before.

Here, '过' emphasizes the completion of the action of eating, implying that the action is in the past and has already occurred.

我们今天已经吃过晚饭了。

We have already had dinner today.

In this context, '过' serves to indicate the prior occurrence of reaching a particular stage or experience, implying a lesson learned or experience gained.

我们不应该再犯这样的错误，你已经到过这个阶段。

We should not make such mistakes again; you have already reached this stage before.