what are you doing for vacation?与 when are you going on vacation?为什么一个用for ,一个用on?

问题描述:

what are you doing for vacation?与 when are you going on vacation?为什么一个用for ,一个用on?

1.你假期打算做什么?for也可以由during代替,为什么是for,就像二为什么读二一样,就是英语文法,犹如what're you going to do for the summer holiday?
2.你什么时候去度假?go on vacation去度假,固定短语.
希望帮到楼主