on vacation与for vacation的区别

on vacation与for vacation的区别 for vacation与on vacation的不同 for vacation与on vacation用法 go on vacation与go for vacation的区别 go on vacation与go for vacation的区别 go on vacation 与go for vacation 的区别 on vacation 与for vacation的区别、 要例子 on vacation与 for a vacation的用法与区别go for a vacation,go on vacation,take a vacation的区别,用法拜托! 问 be on vacation go on vacation do for vacation take a vacation go for vacation等有什么区别,顺便问：What are you doing for vacation？与What are you doing on vacation？有何区别？ on vacation 和 for vacation的区别 on vacation和for vacation哪个对 go for one's vacation /on vacation/ take a vacation what are you doing for vacation?与 when are you going on vacation?为什么一个用for ,一个用on? for vacation on vacation take a vacation on holiday for vacation 的区别 for vacation什么意思,和on vacation有什么不同 on vacation和 for vacation 有和区别? for our vacation,on our vacation的差别 on vacation 和for vacation 有啥区别? on vacation 和for vacation有什么区别?