you must take your turn when you buy the train ticketyou must ___ ____ ___when you buy the train ticket改同义句并说明一下理由

问题描述:

you must take your turn when you buy the train ticketyou must ___ ____ ___when you buy the train ticket改同义句并说明一下理由

line up 这句话的意思是 必须要到你的轮次才能买火车票 line up就是排队买票的意思