阴沟

例句：

1. 1. The sewer system is a crucial part of the city's infrastructure.
   下水道系统是城市基础设施的重要组成部分。
2. 2. The rainwater was diverted into the drain to prevent flooding.
   雨水被引导到排水沟以防止洪水。
3. 3. The workers were cleaning up the gutters to remove debris from the streets.
   工人们正在清理排水沟，以清除街道上的杂物。