sewage disposal system

• 污水处理系统

sewage disposal system的用法和样例：

例句

1. Through urine, the chemical found its way into the Po and the sewerage system.
   通过尿液，这种化学物质进入波河和污水处理系统。
2. The grave problems of public hygiene are connected with the inefficient sewage system of the city.
   公共卫生方面的严重问题与该城低效率的污水处理系统有关。