1
a culvert under [place]
culvert 是可数名词，常用 under 引出其位置。
The county built a culvert under the highway.
县里在高速公路下方修建了一个涵洞。
涵洞
先理解核心含义，再看它在真实句子里的用法。
涵洞
culvert
The county built a culvert under the highway.
县里在高速公路下方修建了一个涵洞。
暗渠；涵洞；指穿过道路或铁路下方的排水通道。
A channel crossing under a road or railway for the draining of water.
道路或铁路下方横向且完全封闭的排水管
a transverse and totally enclosed drain under a road or railway
The workers installed a new culvert under the road to let rainwater flow through.
工人们在道路下方安装了一条新涵洞，让雨水流过。
After the storm, water rushed through the culvert and flooded the field.
暴风雨过后，水从涵洞中涌出，淹没了田野。
The old culvert was blocked by fallen branches, so we called the maintenance team.
旧涵洞被掉落的树枝堵住了，所以我们叫来了维修队。
culvert 是可数名词，常用 under 引出其位置。
The county built a culvert under the highway.
县里在高速公路下方修建了一个涵洞。
through 强调从一头到另一头穿过涵洞。
Rainwater flows through the culvert and into the drainage ditch.
雨水流过涵洞，进入排水沟。
被动语态常用于说明涵洞的用途。
Culverts are used to prevent flooding on the road.
涵洞用于防止道路积水。
Not this
The water in the open culvert was blocked.
Use this
The water in the open ditch was blocked.
culvert 指完全封闭的过水通道，不能指露天沟渠；表示露天的排水沟应用 ditch。
Not this
The water flows under the culvert.
Use this
The water flows through the culvert.
水沿涵洞内部从一端流向另一端应用介词 through；under 只表示在物体下方，不符合“穿过涵洞”的含义。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
箱形涵洞
The contractor installed a box culvert under the new highway.
承包商在新公路下安装了一个箱形涵洞。
管涵
A pipe culvert carries the stream beneath the rural road.
一条管涵将溪流从乡村道路下方穿过。
混凝土涵洞
The concrete culvert was strong enough to support heavy trucks.
这座混凝土涵洞足够坚固，能承受重型卡车。
排水涵洞
The drainage culvert directs rainwater away from the railway tracks.
排水涵洞将雨水从铁轨引开。
安装涵洞
Crews will install a culvert to manage stormwater.
施工队将安装一个涵洞来管理雨水。
堵塞的涵洞
A blocked culvert caused flooding on the street.
堵塞的涵洞导致街道积水。
Use culvert naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记作：Culvert 音近“卡尔沃特”，想象卡尔从马路下的涵洞（排水洞）钻过。
语域：formal 常见场景：civil engineering、road and railway drainage、municipal infrastructure culvert 属于工程技术用词，通常出现在道路、铁路、市政排水等正式场合或书面资料中，日常口语较少使用；非正式语境下可考虑用 drain 或 pipe 表达类似含义。
culvert /ˈkʌlvɚt/ has no common exact rhymes. Words beginning with cul- (culture, cultivate, culprit) genuinely share the initial sound /kʌl/. Lookalikes ending in -vert (invert, convert, divert) are pronounced with a stressed /vɜːrt/, not the unstressed /vɚt/ of culvert, so they do not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.