为什么可以write it down ,有时不可以write down it?类似的句子的用法请说一下.

为什么可以write it down ,有时不可以write down it?类似的句子的用法请说一下. write it down it 为什么在down前 write it down 可以写成write down it吗 有什么规律 write it down write it down 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 down on the blackboard“写在黑板上”,其中down可以省略吗?说成write on the blackboard?为什么 write dowe it和write it down的区别write dowe it和write it down有什么区别? why dong't you write it down?变同义句1( ) ( ) ( )it down?2 ( ) ( ) ( )it down?3( ) ( ) ( )it down.4( ) ( ) ( )it down.5( ) ( ) ( )write it down? 找出错误 please write down it write it down in blue 歌词 write down the address before you forget it.为什么不用Writing这是一句话 以write 开头 This is a new word.please ( ) A.write down it B.write it down C.write then down 原因