An overpass is a road (or path) built like a bridge so that one road can go over another road, or over a railway, without the two meeting. Cars stay on their own level; nobody has to wait at a crossing.

An overpass is陸橋是 built like a bridge蓋得像橋一樣 a road (or path)的一條路（或步道） one road，讓一條路 can go over能跨過 another road, or over a railway,另一條路或鐵路 without the two meeting，兩者不會交會。Cars車子 stay on their own level;各自留在自己的高度， nobody沒有人 at a crossing在路口 has to wait需要等候。

In American English this is the everyday word. British speakers often say flyover for the big road-over-road kind.

In American English在美式英文裡， this這個字 is the everyday word是很常見的說法。 British speakers英式英語的人 for the big road-over-road kind常把那種大型、路跨路的陸橋 often say說成 flyoverflyover（高架橋）。

Though actually, English is a bit untidy here: a small bridge just for people walking is usually a footbridge, not an overpass, even though it also “goes over.” The opposite idea is an underpass, which ducks under.

Though actually,不過其實， English is a bit untidy here:英文在這裡有點不整齊： a small bridge just for people walking只給人走路用的小橋 is usually通常叫做 a footbridge,人行天橋， not an overpass,不是陸橋， even though it also 'goes over.'雖然它的動作也是「跨過去」。 The opposite idea相反的概念 is an underpass,是地下道， which ducks under.從下面穿過去。

As a verb, overpass exists in older writing meaning to pass over or to go beyond, but that use is rare now; the word you will meet is the noun — the structure itself.

As a verb,當動詞用時， overpassoverpass這個字 exists in older writing出現在較舊的文章裡， meaning to pass over or to go beyond,意思是「越過」或「超出」， but that use is rare now;但這種用法現在很少見； the word you will meet你會遇到的 is the noun是名詞用法 — the structure itself.──指那個建築物本身。