I can't be who you are中who的用法

问题描述:

I can't be who you are中who的用法

表语从句的连接词,情比较:
I can't be who(==the person that) you are(指人品,外貌)
I can't be what you are(指职业,工作,身份,地位)==I can't be the person to do the work you do.