他的祖父是一个毛皮商人。

His grandfather was a fur ___trader.

她在华尔街做交易员，为一家大金融公司工作。

She's a ___trader on Wall Street, working for a big financial company.

在国外待了一段时间后，他在一家私人银行的债券市场做交易员。

After spending some time abroad, he worked as a ___trader in the bond market at a private bank.