题目内容：

You know many ladies look at many hats before they buy on and this makes salesmen very tired
You know many ladies look at many hats before they buy one and this makes salesmen very tired
这句话该从哪里着手解释 before they buy one 后加AND要和BEFORE连在一起解释?

优质解答

不是的
and连接的是many ladies look at many hats before they buy one和 this makes salesmen very tired两个句子.
before they buy it是前一句的状语