sanitation
柯林斯词典
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和潔淨水源的) 公共衛生
...the hazards of contaminated water and poor sanitation. …汙水和不良公共衛生的危害。
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