1
a/the flyover + over/above + [noun phrase]
flyover 作“立交桥”解时是可数名词，复数形式为 flyovers。
The flyover over the highway was opened to traffic last week.
这条横跨高速公路的立交桥上周开通了。
立交桥；高架桥；天桥
先理解核心含义，再看它在真实句子里的用法。
立交桥；高架桥；天桥
flyover
The flyover over the highway was opened to traffic last week.
这条横跨高速公路的立交桥上周开通了。
由两条不同高度公路交叉形成的上层桥梁
bridge formed by the upper level of a crossing of two highways at different levels
(通常为军用飞机)在地面观众上空低空飞行
a flight at a low altitude (usually of military aircraft) over spectators on the ground
The new flyover lets cars cross the highway without stopping.
新的立交桥让汽车不用停下来就能穿过高速公路。
We drove along the flyover to get to the other side of the city.
我们沿高架桥开车到了城市的另一侧。
Several flyovers were damaged in the storm.
好几座立交桥在暴风雨中受损了。
flyover 作“立交桥”解时是可数名词，复数形式为 flyovers。
The flyover over the highway was opened to traffic last week.
这条横跨高速公路的立交桥上周开通了。
表示在某处建桥时，地点前常用 at 或 in；at 后多接路口、交叉点。
The city will build a flyover at the busy crossing.
这座城市将在繁忙的路口建一座立交桥。
cross 在这里指“横跨”，说明立交桥的通行功能。
This flyover crosses the highway at a steep angle.
这座立交桥以陡峭的角度跨越高速公路。
Not this
There are many flyover in this city.
Use this
There are many flyovers in this city.
flyover 是可数名词，在 many 后须用复数形式 flyovers。
Not this
The plane will flyover the mountains.
Use this
The plane will fly over the mountains.
flyover 是名词，不能当动词用；表示“飞越”时，动词短语是两个词 fly over。
Not this
Let's use the flyover to cross the street.
Use this
Let's use the footbridge to cross the street.
flyover 指车辆通行的立体交叉桥，行人过街应用 footbridge（人行天桥）；这是英汉“天桥”含义不对等造成的选词错误。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
建造立交桥
The city plans to build a flyover at this busy junction.
这座城市计划在这个繁忙的交叉路口建造一座立交桥。
立交桥上的车流
Traffic on the flyover was moving slowly this morning.
今天早上立交桥上的车流移动缓慢。
立交桥下面
They built a small park under the flyover.
他们在立交桥下面建了一个小公园。
立交桥施工
Flyover construction caused long delays on the road below.
立交桥施工给下面的道路造成了长时间的延误。
飞越之地（指美国东西海岸之间被忽视的地区）
Many people in flyover country feel that the media only cares about New York and Los Angeles.
飞越之地的许多人觉得媒体只关心纽约和洛杉矶。
Use flyover naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象车流从立交桥上“飞过”下方道路：fly（飞）+ over（越过），飞越过去的就是flyover。
语域：neutral 常见场景：transportation、road engineering、urban planning 这个词多用于交通、道路工程或城市规划等比较正式的场景，属于中性偏正式的书面词；日常口语中通常较少直接使用。
Flyover ends in -over /əʊvə(r)/ (AmE /oʊvər/). Over, clover, and moreover share this stressed /əʊvə(r)/ sound and rhyme with one another; in flyover the same ending is unstressed, so they are not perfect rhymes with it. Cover, hover, and lover are useful spelling lookalikes, but their vowel is /ʌ/ or /ɒ/, not /əʊ/.
Dictionary facts from ECDICT, WIKTIONARY.