public health

public-health的词性：
n.Abbr. PH, PH（名词）缩写 PH， PH

1. The science and practice of protecting and improving the health of a community, as by preventive medicine, health education, control of communicable diseases, application of sanitary measures, and monitoring of environmental hazards.
公众卫生：保护和改善一个社区健康状况的科学和实践，比如通过预防药物、健康教对传染性疾病进行控制、采取卫生措施和环境监督