in two weeks 和two weeks later能互换吗?关于直接引语和间接引语
题目是把下面的句子由直接引语改为间接引语
He said,"i will make a trip in two weeks."
He said that he would make a trip two weeks later.
我的问题是two weeks later能改用in two weeks
PS 怎样做把直接引语改为间接引语的题,方法