door-to-door salesman

例句：

1. 1.He is a door-to-door salesman who sells cars.
   他是一个上门推销汽车的销售人员。
2. 2. The salesman was very persistent in his efforts to close the deal.
   这位销售员在努力达成交易时非常坚持。
3. 3.Door-to-door salesmen are often seen selling products on the streets.
   经常可以看到上门推销员在街上卖产品。