影视对白：

A: Where's Christopher?
克里斯多夫搞什么？
B: He's in the duty-free buying a gift for Ade.
他在收拾行李。
A: Four days, he's a block from the best shopping district. Why didn't he think of it then?
一连4天，他不是睡觉就是喝酒。他还没闹够吗？

今天我们要学的单词是：duty-free adj. 免税的
adv. 免税地

短语：

duty-free shop 免税商店

例句：

eg. He buy a duty-free watch at the airport or he buy the watch duty-free.
他在机场买了一块免税手表或他买的手表是免税的。

eg. Some airlines also keep their own stocks of duty-free goods to sell to passengers in flight.
一些航空公司同样备有自己的免税产品，来在飞行途中向乘客出售。

eg. Exports from these zones can enter the United States duty-free.
这些地区的出口物资可以免税进入美国。