door-to-door
adjective [ before noun ] uk/ˌdɔː.təˈdɔːr/ us/ˌdɔːr.t̬əˈdɔːr/
挨家挨户（的），逐户（的）
going from one house or building in an area to another
He was a door-to-door salesman before he became an actor. 他当演员之前是个上门推销产品的推销员。
Synonym: house-to-house