community service
noun/kəˌmjuːnəti ˈsɜːvɪs/
/kəˌmjuːnəti ˈsɜːrvɪs/
[uncountable]- work helping people in the local community that somebody does without being paid, either because they want to, or because they have been ordered to by a court as a punishment
社区服务（自愿或因受法庭惩罚的无偿劳动）