door-to-door selling

• 挨户推销

door-to-door selling的用法和样例：

例句

1. He was a door-to-door salesman for a bit, but he soon got tired of having the door slammed in his face.
   他干过一阵子挨户推销的事，但因常吃闭门羹，很快就讨厌那项工作了。