vol·un·teer·ism
noun/ˌvɒlənˈtɪərɪzəm/
/ˌvɑːlənˈtɪrɪzəm/
[uncountable] (especially North American English)- the practice of working as a volunteer, especially in community service
（尤指在社区服务机构中的）志愿工作，义务工作，义工服务 - (also voluntarism)the practice of using or relying on volunteers rather than paid workers
志愿服务：使用或依靠志愿人员而不是带薪工人的做法