卫生下水道 wèishēngxiàshuǐdào sanitary sewer Origin Definitions Defs Strokes Stroke Words Sentences Sents 卫生 衛生 wèishēng noun hygiene hygiene; sanitation; health; (bound form) the act of protecting one's health下水道 xiàshuǐdào noun sewer an underground pipe or drain for carrying away rainwater or wastewater