sanitation

详细解释:n. (环境)卫生, 环境卫生的提倡/维持, 卫生设备, 下水道设施, 卫生设施
【医】 环境卫生

英语解释：

名词 sanitation:

the state of being clean and conducive to healthmaking something sanitary (free of germs) as by sterilizing同义词：sanitization, sanitisation