public health pest

例句：

1. 1. The public health department is responsiblefor monitoring and controlling the spread of diseases.
   公共卫生部门负责监测和控制疾病的传播。
2. 2. Thepublic health expert warned against the dangersof smoking in public places.
   公共卫生专家警告公众场所吸烟的危险。
3. 3. The public health campaign aimsto reduce the number of people suffering fromtuberculosis.
   公共卫生运动旨在减少结核病患者的数量。