题目

这句英语该怎样理解
Don't check boxes for words you know you've seen before,but whose meaning you aren't exactly sure of
解释一下这句话中but和of的用法

提问时间：2020-07-23

答案

but 并列 两个 定语从句 not .but ...不是.而是.
whose meaning you aren't exactly sure of是定语从句 修饰 boxes for words
whose meaning引导定语从句 并作定从中 of 的宾语