fall down fall off all over fall on falling 这几个词的区别.

fall down fall off all over fall on falling 这几个词的区别. fall off fall over fall behind fall down 区别的 fall off 、fall down、 fall over区别 fall down. fall through. fall over. fall on 区别 请问：fall down,fall over,fall off有和区别? fall down和fall off的区别 fall off,fall down,fall from的用法和区别. 请问fall off,fall to与fall down的区别 A.fall over B.fall off C.fall down这三个词什么意思 fall off fall from fall down fall fall over fall off fall down 请求翻译 fall off 与 fall down 区别