词典释义：
释义
from start to finish of a journey
（行程）从开始到结束
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the trip from door to door could take more than four hours .全部旅程要花四个多小时。
visiting all the houses in an area to sell or publicize something
挨家挨户（推销或宣传）
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he went from door to door selling insurance policies 他挨家挨户地推销保险
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[as modifier]
a door-to-door salesman .一位逐门逐户推销的推销员。