那个二手车市场的商人是个精明的生意人，总是能做成利润丰厚的交易。

That used car salesman is a real ___wheeler-dealer, always closing lucrative deals.

那个汽车销售商是个精明的生意人，总能通过巧妙谈判达成交易。

The car salesman is a real ___wheeler-dealer, always closing deals with clever negotiations.