write it down it 为什么在down前

write it down it 为什么在down前 write it down write it down和write down it 有什么区别? 求write it down造句 用“write it down”造句 write it down和write them down的区别 Write it down before you forget it. write dowe it和write it down的区别 write it down in blue 歌词 找出错误 please write down it write it down 可以写成write down it吗 有什么规律 it is hard for me to write down it