志愿服务
type: Concept
definition: 无偿并自愿向他人提供服务
in scheme: mediatopic
created: 2019-10-07T12:00:00+00:00
modified: 2021-07-12T12:00:00+00:00
broader: http://cv.iptc.org/newscodes/mediatopic/20000509