In country parts of the United States, RR on an address means Rural Route. The post office used to — and in some places still does — deliver mail along numbered routes in the countryside, instead of to a named street in a town.

In country parts of the United States在美國鄉下地區 RR on an address地址上的RR means指的是 Rural Route鄉村郵路 The post office郵局 used to過去 — and in some places有些地方 still does現在也還是 — deliver mail送信 along numbered routes in the countryside沿著鄉間編號的路線 instead of而不是 to a named street in a town送到城鎮裡有名字的街道

So an address might look like RR 2 Box 14: the second rural route, mailbox number 14. It tells the carrier which round to drive, not a city street name.

So所以 an address一個地址 might look like可能會長得像 RR 2 Box 14RR 2 Box 14: the second rural route第二條鄉村郵路 mailbox number 1414號信箱 It這是 tells the carrier告訴郵差 which round to drive該跑哪一趟 not而不是 a city street name城市街道名稱

You will not see this on a London or Taipei address. If you write to a farm or a house far from town in the US, you may still meet RR.

on a London or Taipei address在倫敦或台北的地址上 You你不會看到這個 will not see this If you write to如果你寫信給 a farm or a house far from town in the US在美國一個離城鎮很遠的農場或房子 you may still meet RR你可能還是會遇到RR

Though actually, many of those old routes have since been given ordinary road names, so RR is less common than it once was, but it is still the meaning in American country addresses.

Though actually不過事實上 many of those old routes那些舊路線裡有很多 have since been given ordinary road names後來都被取了普通的路名 so RR is less common than it once was所以RR已經沒有以前那麼常見了 but但 in American country addresses在美國鄉下地址裡 it is still the meaning這仍然是它的意思