我已经去过北京了。

Yes, I have already been to Beijing.

youdao

自从上次的北京之旅之后，我已经很长时间没有在去过北京了。

It's has been a long time since I went to Beijing last time.

youdao

自从上次的北京之旅之后，我已经很长时间没有在去过北京了。

It's has been a long time since I went to Beijing last time.

youdao