Merchant seamen or ships are involved in carrying goods for trade.
There's been a big reduction in the size of the merchant fleet in recent years.
近年来商船队的数量大为缩减。
merchants
A merchant is a person who buys or sells goods in large quantities, especially one who imports and exports them.
Any knowledgeable wine merchant would be able to advise you.
任何一位内行的葡萄酒商人都能为你提出建议。