culvert
🇺🇸
/ˈkʌlvərt/
🇬🇧
/ˈkʌlvət/
A culvert is a pipe or tunnel that lets water flow under a road.
The culvert was built to prevent flooding on the road during heavy rains.
涵洞建造是为了在大雨期间防止道路上发生洪水。