高手来了 to 后面跟地点表地去过某地.常用搭配 in 介词而已,后面跟地点表示在某个地方之内,have been in 就提示你还在这里. on 介词而已,后面跟表地点的表示在什么上,比如在地板上,当然也提示你还在这里. I have been to bejing 后面不能跟一段时间 I have been in beijing for a year 我已经在BJ呆了一年了,－－可能要走了,也可能要继续呆下去． I have been on the floor for an hour. I have been to bj and lived there for a yea
