In Britain, the A1 is a famous main road that runs from London in the south all the way north to Edinburgh in Scotland. British main roads have numbers; “A” roads are the important ones, and the A1 is the great north–south route, following in a loose way the old Great North Road.

In Britain在英國， the A1 is a famous main roadA1是一條有名的主要道路， that runs from London in the south從南邊的倫敦 all the way north to Edinburgh in Scotland一路往北通到蘇格蘭的愛丁堡。British main roads have numbers英國的主要道路都有編號； "A" roads are the important ones「A」開頭的路是比較重要的那一種， and the A1 is the great north–south routeA1就是那條偉大的南北縱貫路線， following in a loose way大致上沿著 the old Great North Road古老的Great North Road（大北路）的路線走。

It is not a motorway for the whole trip. Some stretches are a faster motorway written A1(M), but much of it still goes through or past towns, with ordinary junctions and speed limits.

It它 is not a motorway並不是motorway（高速公路） for the whole trip全程都是。Some stretches有些路段 are a faster motorway是比較快的motorway， written A1(M)寫作A1(M)， but much of it still goes through or past towns但大部分路段還是會穿過或經過城鎮， with ordinary junctions and speed limits有一般的路口和速限。

You will see “A1” on UK maps and road signs. It is not the same road as the M1, which is a motorway that also leaves London heading north but is a different line.

You你 will see "A1"會看到「A1」 on UK maps and road signs在英國的地圖和路標上。It它 is not the same road as the M1跟M1不是同一條路， which is a motorway that also leaves London heading northM1是一條也從倫敦往北出發的motorway， but is a different line但走的是不同的路線。

And though actually, English speakers also say “A1” to mean “excellent” — that is a different use of the same letters, not this road.

And though actually不過話說回來， English speakers also say "A1"英語使用者也會用「A1」 to mean "excellent"來表示「excellent（超棒）」—— that is a different use of the same letters那是同一組字母的另一種用法， not this road跟這條路無關。