He stood at the window,from where he could see what was happening.在这句话中为什么要用from where呢

问题描述:

He stood at the window,from where he could see what was happening.在这句话中为什么要用from where呢

定语从句 place是先行词 像where这种比较特殊的词可以放在介词后面,翻译为从这里