東西南北
A(海關) B(旅客)A: HiB: helloA: can I have your passport please?B: O yeah, sure.A: Can I also have your boarding pass please?B: Here you go.A: How long are you plainning to stay?B: About 7days or so.A: What is your purpose of this trip?B: I am here to visit my friends.A...