名詞 culvert:

1. a transverse and totally enclosed drain under a road or railway

cul.vert

n.（名詞）
A sewer or drain crossing under a road or embankment.
涵洞：橫在公路或堤岸下面的下水道或排水管

The part of a road or embankment that passes over such a sewer or drain.
涵洞橋：跨越涵洞的公路或堤岸的一部分
The channel or conduit for such a sewer or drain.
涵洞管道：涵洞的溝渠或引水道

來源：
[Origin unknown]
[詞源未知]