public service

public-service的词性：
n.（名词）

1. Employment within a governmental system, especially within the civil service.
公益服务：尤指在政府系统的行政机构内的职务

2. A service performed for the benefit of the public, especially by a nonprofit organization.
公益服务：尤指由非盈利性组织进行的为公众的利益而实施的服务

3. The business of supplying an essential commodity, such as water or electricity, or a service, such as communications or transportation, to the public.
公益事业：为公众提供水或电等基本生活用品或通讯或交通等服务的事业

public-service的音标和读音：