An aqueduct is a channel built to carry water a long way, often high up on arches so it can cross a river or a valley and keep the water flowing downhill. The famous ones are Roman: a line of stone arches marching across the land, with a watercourse on top.

An aqueduct is a channel built to carry water a long wayAqueduct是建來把水送到很遠的地方的水道 often high up on arches常常架在高高的拱上 so it can cross a river or a valley and keep the water flowing downhill好讓它能跨過河流或山谷，維持水一路往下流 The famous ones are Roman最有名的是羅馬時代的： a line of stone arches marching across the land一排石頭拱門橫越大地 with a watercourse on top上面就是水道

Though actually, an aqueduct does not have to look like a bridge. Some run underground, and some modern ones are just large pipes or concrete channels. The point is the job — bringing water from where it is to where people need it — not the pretty arches, even if those are what most learners picture.

Though actually, an aqueduct does not have to look like a bridge不過aqueduct不一定要長得像一座橋 Some run underground有些是埋在地下的 and some modern ones are just large pipes or concrete channels現代的一些甚至只是大型的管線或水泥渠道 The point is the job重點是它的功能： bringing water from where it is to where people need it把水從有水的地方送到人們需要的地方 not the pretty arches不是那些漂亮的拱門 even if those are what most learners picture就算那是大部分學習者腦中的畫面

It is a slightly formal, textbook word; in casual talk people may just say the water channel or the old Roman bridge. You also meet it in history class more than in daily life.

It is a slightly formal, textbook word這是個稍微正式、教科書式的字： in casual talk people may just say the water channel or the old Roman bridge平常說話大家可能就直接說水道，或那座古羅馬的橋 You also meet it in history class more than in daily life你在歷史課遇到它的機會，也比在日常生活裡多