请求fall,fall down的区别.今天老师给我们默写,中文是：她发现他自己正在坠落.

请求fall,fall down的区别.今天老师给我们默写,中文是：她发现他自己正在坠落. fall off fall over fall behind fall down 区别的 fall down和fall off的区别 fall through 和fall down的区别 fall和fall down的区别 fall off,fall down,fall from的用法和区别. fall down和fall of和fall from的区别 请问fall off,fall to与fall down的区别 fall off 、fall down、 fall over区别 fall over fall off fall down 请求翻译 fall down. fall through. fall over. fall on 区别 歌词有句the sky will fall down 中文是 大地会摇动,天空会坠落,山川也会夷为平地