问题描述：
现在完成时和过去完成时的区别
例如：I had played football和I have played football
他们有什么翻译上区别?
例如：I had played football和I have played football
他们有什么翻译上区别?
问题解答：
我来补答展开全文阅读
问题描述：
问题解答：
我来补答