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新东方-柯林斯雅思备考词典
sewer
英 [ˈsuːə]
[NOUN]
sewers
1. [C 可数名词] 下水道
A sewer is a large underground channel that carries waste matter and rain water away, usually to a place where it is treated and made harmless.
双语例句
例：the city's sewer system.
该城市的下水道系统。