英译汉 1. barter trade 2. commodity inspection 3. comparative advantage 4. credit reference 5. customs clearance 6. direct trade 7. direct transit trade 8. documentation 9. domestic trade 10.economies of scale 11.entrepot trade 12.export license 13.export procedures 14.export trade 15.free-liquidation trade 16.general trade 17.import license 18.import procedures 19.import trade 20.indirect trade