第1个回答 2012-09-27
应该有上文的吧,得分情况:
How long have you had this bike?
For two weeks. ( =since two weeks ago.) for + 一段时间 表持续的时间
When will your mother come back?
In two weeks. (过两周回来) in + 一段时间 表将来
The traffic accident happened to him on May 4. After two weeks, he died.
After + 一段时间 表过去一段时间之后本回答被提问者和网友采纳