political prisoner
noun [ C ] uk/pəˌlɪt.ɪ.kəl ˈprɪz.ən.ər/ us/pəˌlɪt̬.ə.kəl ˈprɪz.ən.ɚ/
政治犯
someone who is put in prison for expressing disapproval of their own government, or for belonging to an organization, race, or social group not approved of by that government