A:Can I help you?B:Yes,please.I want a shirt.A:What color do you want?B:Blue.A:Here you are.B:How much is it?A:It's 20 dollars.B:Thank you .A:You're welcome能为你效劳吗?乙:是的,请。我想要一件衬衫。你喜欢什么颜色的?乙:蓝色。给你。乙:多少钱?答:这是20美元。乙:谢谢你。不客气
自编对话是什么?