public service
noun uk/ˌpʌb.lɪk ˈsɜː.vɪs/ us/ˌpʌb.lɪk ˈsɝː.vɪs/
[ C usually plural ]（由政府提供的）公共服务（如医院、学校、警察等）
a service provided by the government, such as hospitals, schools, or the police
The prime minister wants to stop Italy's huge public debt growing, and to make its public services more efficient. 总理希望意大利的公共债务停止扩大并提高公共服务的效率。
[ U ]政府部门的工作
the government and the work that its departments do
The Senator has worked in public service all his life. 这位参议院一直都在政府部门工作。
[ before noun ] Inner-city teaching has become a popular public-service job for new graduates. 在城市中心区域教书成为了一种受毕业生欢迎的热门政府工作。
[ C ]（为满足需要而非盈利而提供的）公共服务
something that is done or provided for the public because it is needed, and not in order to make a profit
[ before noun ] The star has recorded public-service announcements for local TV on subjects including HIV and teen pregnancy. 这位明星为当地电视台录制的公共服务公告包括艾滋病和青少年怀孕等话题。