hygiene /ˈhaidʒi:n/ n. ［u］卫生，卫生学：poor standards of food hygiene糟糕的食品卫生标准；personal hygiene个人卫生Their course of study includes elementary hygiene and medical theory.他们的课程包括基础卫生学和医疗知识。

 hygienic /haiˈdʒiːnik/ adj. 卫生的，清洁的：hygienic conditions卫生条件The prisoners' living quarters were not hygienic.犯人的住处不卫生。