salesperson

The salesperson knocked on my door to demonstrate a new brand of cleaning detergent.

(Chinese) 售货员敲开我的门，向我演示一种新品牌的清洁剂。

A helpful salesperson at the electronics store explained the features of the laptop to us.

(Chinese) 电子商店里一位热心的售货员向我们解释了这款笔记本电脑的功能。