community service
noun
mass noun
1- voluntary work intended to help people in a particular area社区志愿工作, 社区志愿服务。
1.1
- English Law unpaid work, intended to be of social use, that an offender is required to do instead of going to prison【英格兰律】（犯人用以代替入狱所必须做的）社会服务：
as modifier a community-service order.社会服务令。