问题描述:
She must have been a beauty in her day.
这句的have been 怎么理解啊,不懂.
have been 不是后面+done
所有的have been.
这句的have been 怎么理解啊,不懂.
have been 不是后面+done
所有的have been.
问题解答:
我来补答展开全文阅读