door-to-door

详细解释:a. 挨家挨户的, 送货上门的
ad. 挨户地, 送货上门地

英语解释：

形容词 door-to-door:

(of e.g. journeys or deliveries) direct from point of origin to point of destination omitting no one; from the door of one house to that of the next同义词：house-to-house