vacationn.假期；休假；腾出vi.度假vacation at the shore在海边的度假vacation queuing model休假排队模型vacation of three days三天假vacational high school学习方法vacation into a country到某国的假期vacation opening system假期开放制vacation contraceptives探亲避孕药vacation of the premises[法] 房屋的腾让, 退房vacation and holiday pay[经] 休期工资, 假期津贴vacation belt around city环城市旅游度假带