英语to which用法Human facial expressions differ from those of animals in the degree to which they can be controlled on purpose.中 to which的to与那个词搭配.为什么?

问题描述:

英语to which用法
Human facial expressions differ from those of animals in the degree to which they can be controlled on purpose.中 to which的to与那个词搭配.
为什么?

degree

control

degree,表示the degree to which