名词
1. The grave problems of public hygiene are connected with the inefficient sewage system of the city.
公共卫生方面的严重问题与该城低效率的污水处理系统有关。
1. 卫生学：巴纳凯(Panakeia)和海基亚(Hygeia),也就是百病无所不治和预防保健,今天所称的万灵丹(panacea)和卫生学(hygiene)就源自於此. 并服用罂粟种子与毒参(hemlock)来镇静昏睡於大理石及金雕神像脚下;
2. hygiene：hy; 模式和卫检
1. （尤指为防止患病或疾病传播的）卫生
Hygiene is the practice of keeping yourself and your surroundings clean, especially in order to prevent illness or the spread of diseases.
e.g. Be extra careful about personal hygiene.
要非常注意个人卫生。
noun
1. the science concerned with the prevention of illness and maintenance of health
Synonym: hygienics
2. a condition promoting sanitary practices
e.g. personal hygiene