on a vacation是什么意思

on a vacation是什么意思 on a vacation造句 a-long-vacation是什么意思 go for one's vacation /on vacation/ take a vacation for vacation on vacation take a vacation on holiday for vacation 的区别 go on vacation 和go on a vacation 的区别? go on vacation还是go on a vacation? go on a vacation与go on vacation的区别go on a vacation与go on vacation一样吗? where did you go on vacation是什么意思 Have a nice vacation是什么意思 take a vacation = go on vacation = have a vacation = go for a vacation=on sp take a vacation 和 go on vacation 有什么区别? 是go on vacation 还是go on a vacation?是go for vacation还是go for a vacation? :Wouldn't it be great if we could go on a vacation是什么意思 have a vacation是什么意思?还有get a vacation take a vacation = go on vacation = have a vacation? a vacation 前用on还是for Go on a vacation = holiday