be used to do be use for doing区别 有例句说明

问题描述:

be used to do be use for doing区别 有例句说明

【used to do sth】和【be used to do sth】①used to do 过去常常(表示现在不再)eg:I used to swim in the lake near my village when I was young.②be used to do 被用于.=④be used for sth./doing sth.eg:Woo...