出国旅行必备点餐口语，如何流利地用英语退换饭菜？出国旅行必备点餐口语，如何流利地用英语退换饭菜？这里的情景对话，模拟在餐厅退换饭菜的时候怎么交流，供参考😄Woman: What is this? I didn't order that.Waiter: I’m terribly sorry. May...