have been there =have been in there?

题目

have been there =have been in there?
have been和have been in 有什么区别呢?

答案

参见楼上回答,并补充如下.
have been there 曾经到过那里
have been in there 一般不这么说,因为：
be in there 有另一层含义：
坚持(进行斗争等), 不懈地从事