他的祖先是毛皮商人。

His ancestors were fur ___traders.

她是华尔街的一名交易员，为一家大金融公司工作。

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

在那边待了几个月后，他回到了瑞士，在一家私人银行担任债券市场的交易员。

After spending a few months over there, he got back to Switzerland, where he worked in a private bank as a ___trader in the bond market.