1793 trade-in

今天我们要学的词是trade-in. Trade-in 是以旧换新的意思。Apple plans to launch an iPhone trade-in program, encouraging consumers to upgrade to the iPhone 5. 苹果公司计划启动苹果手机以旧换新的项目，以鼓励消费者把旧苹果手机升级到第五代。An elementary school in California will sponsor a toy-gun trade-in program, encouraging kids to swap their toy weapons for a chance to win a new bike. 美国加州的一所小学将组织玩具枪以旧换新的活动，鼓励孩子上缴玩具武器，参加这项活动的孩子都有机会赢得一辆崭新的自行车。好的，今天我们学习的词是 trade-in, trade-in, trade-in...