n.志愿劳动力的使用
Can I have a volunteer to wash the dishes? 谁自愿来帮忙收拾一下这些盘子？
Many retirees volunteer in community service and day care centers. 许多退休人员在社区服务或育婴中心做义务工作
Others included new off-line services, such as consulting to nonprofits on their volunteer programs and planning conferences on volunteerism. 还有些是网外服务，如为非营利组织的志愿者项目提供咨询，规划筹备志愿者的交流会议。
He enlisted as a volunteer in the army. 他以志愿兵从军。
His special satisfaction comes from volunteer work. 他从义务服务中得到最大满足
