i have two brothers,both_are doctors.为啥不用BOTH OF THEM非要用BOTH OF WHOM

问题描述:

i have two brothers,both_are doctors.为啥不用BOTH OF THEM非要用BOTH OF WHOM

若句中的逗号改为句号,就得用both of them了,因为有了逗号就变成非限制性定语从句了