英语fall down,over ,off有什么区别?

英语fall down,over ,off有什么区别? 请问：fall down,fall over,fall off有和区别? fall off 、fall down、 fall over区别 请问 fall down fall off fall away有什么区别? fall off fall over fall behind fall down 区别的 fall off和fall down 有什么区别 fall down,fall over,fall off有和区别?谢谢! 主要讲讲搭配! fell off,fell down,fell over有什么区别? fall down fall off all over fall on falling 这几个词的区别. fall off 与fall down有何区别? A.fall over B.fall off C.fall down这三个词什么意思 fall over 和fall有什么区别