over与across有什么区别?

问题描述:

over与across有什么区别?
over有动态经过.上方的意思,是介词
across也有动态穿过(某平面)的意思,也是介词,怎么区别他们呢

我的英语笔记:1 They can both be used to mean 'on or to the other side of a line,river road,etc' (position or movement related to things that are 'long,and thin').二者用来表示‘on the other side of a ...