duty-free shop
noun🔊/ˌdjuːti ˈfriː ʃɒp/
🔊/ˌduːti ˈfriː ʃɑːp/
(British English) (North American English duty-free store)
(also duty-free British and North American English)
a shop in an airport or on a ship, etc. that sells goods such as cigarettes, alcohol, perfume, etc. without tax on them （机场内、船上等的）免税商店