第一句：Why do people like to buy liquor in duty-free shops?
为什么人们喜欢在免税商店买酒呢?
A: Why do people like to buy liquor in duty-free shops?
为什么人们喜欢在免税商店买酒呢?
B: What do you mean? It's because it's much cheaper to buy liquor in duty-free shops.
什么意思?因为在免税商店买酒便宜很多。
A: But why?
为什么?
B: Well, it;s because in most countries liquor has a higher tax on it.
因为大部分国家酒类的税比较高。
第二句：Cigarettes are also taxed very heavily.
香烟的税也很高。
A: A lot of people buy cigarettes here too, isn't it?
很多人也在这儿卖香烟，对不对?
B: Yes. Cigarettes are also taxed very heavily.
是的，香烟的税也很重。
A: Now I understand. But I don't smoke.
现在我懂了，但是我不抽烟。