Door-to-door means going from one house to the next along a street: knock, talk, then the next door, then the next. People do this to sell things, collect money for charity, or ask for votes.

Door-to-door means意思是 along a street沿著一條街 from one house to the next一家接著一家 going走：knock敲門、talk講話，then the next door然後下一家門、then the next再下一家。People人們 do this這樣做，to sell things是為了賣東西、collect money for charity為慈善募款、or ask for votes或拉票。

You can use it before a noun (a door-to-door salesman) or after a verb (they went door-to-door). The picture is house by house, not a casual visit to one friend.

You你 can use it可以把它用 before a noun在名詞前——a door-to-door salesman——or after a verb或動詞後——they went door-to-door。The picture畫面 is house by house是一戶又一戶，not a casual visit不是隨意去拜訪 to one friend一位朋友。

In many places this kind of selling is less welcome than it used to be; some people treat it as a nuisance and do not open the door. There is a related use in travel and delivery — “door-to-door” as all the way from your house to the other person’s house — but the heart of this word is still that trail of front doors.

In many places在許多地方，this kind of selling這種賣東西的方式 than it used to be比從前 is less welcome更不受歡迎；some people有些人 treat it as a nuisance把它當成打擾，and do not open the door而不開門。in travel and delivery在旅行和貨運裡 There is a related use有一個相關的用法——“door-to-door” as就是 from your house從你家 all the way一路 to the other person’s house到對方家——but但 this word這個字 the heart of的核心 is still仍然是 that trail of front doors那一連串的大門。