sanitation

1. N-UNCOUNT Sanitation is the process of keeping places clean and healthy, especially by providing a sewage system and a clean water supply. (尤指通過提供排汙系統(tǒng)和潔淨(jìng)水源的) 公共衛(wèi)生

...the hazards of contaminated water and poor sanitation. …汙水和不良公共衛(wèi)生的危害。