down,fall,take off,put的用法及区别

fall off,fall down,fall from的用法和区别. fall down和fall off的区别 fall off fall over fall behind fall down 区别的 关于fall down/off 和cut down/off的用法 put off 和put down的区别 请问fall off,fall to与fall down的区别 take/put off 的区别 fall off 、fall down、 fall over区别 put off,turn off,set off,take off的区别? take away 和put away 的区别及用法? fall off 与 fall down 区别 take down take off take away take out 的区别