这位交易员每天在金融市场上买卖货币。
The ___trader buys and sells currencies in the financial market every day.
这位商人用丝绸换取了香料。
The ___trader exchanged silk for spices.
那位贸易商从国外进口了大量咖啡豆。
The ___trader imported a large quantity of coffee beans from abroad.