The town has already put in a proper sewerage system.
小镇已经安装了合理的污水处理系统。
...without access to any services such as water or sewerage.
不能享受任何诸如供水或污水处理之类的服务
英汉双解词典包含141091条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。