have been to和have gone to和have been in的区别

have been to 是已经去过了的意思 比如：I've been to China 我去过中国了 have gone to 是已经去了,但是人还在那里没回来 Dad have gone to China on business 爸爸已经去中国出差了 have been in 是已经呆过一段时...