when does it reach the end of time for which it can be used?这句话的意思?
问题描述:
when does it reach the end of time for which it can be used?这句话的意思?
后面这个从句for which it can be used是什么意思?
答
be used for 被用来做什么
这里的 for which 是将 use 的 介词搭配提到前面去了,不可以省略.which 是指代前面的事情.