electric sewer

例句：

1. 1. The city's new electric sewer system is expected to improve air quality significantly.
   城市的新的电下水道系统预计将显著改善空气质量。
2. 2. The construction of the electric sewer has been a long-standing project in the area.
   电下水道的建设一直是该地区的一项长期项目。
3. 3. Due to the high cost and environmental concerns, the construction of an electric sewer is not feasible for all communities.
   由于成本高昂和环境担忧，并非所有社区都适合建设电下水道。