/ˈkʌstəmz ˈbærɪər/ – noun
Definition: Hạn chế hải quan.
A more thorough explanation: 1. a physical barrier at an entrance to a country at which restricted goods must be declared
2. restrictions on imports designed to limit international trade
Example: 1. He was captured smiling on CCTV as he approached the customs barrier at Sydney Airport.
2. Moscow said on Monday that the customs barrier on grain exports was aimed at ensuring its own food security.