done willingly, not because you are forced 自愿的；自发的◆Where possible, redundancy should be on a voluntary basis. 如果可能的话，精简人员应当建立在自愿基础上。◆These pollution controls rely on voluntary action by business. 这些污染控制取决於企业的自发行为。◆to pay voluntary contributions into a pension fund 自愿缴存退休金OPPcompulsory , involuntary
[] (about work) done by people who choose to do it without being paid （工作）志愿者的◆Large numbers of young people are involved in voluntary work in the community. 许多年轻人参与社区的志愿者工作。
(about a person or an organization) doing a job without wanting to be paid for it （人或组织）志愿的◆the voluntary sector(= organizations which help people and which do not make a profit, for example charities) 志愿部门（慈善机构等服务公众的非营利性组织）⨁voluntary groups / organizations / services 志愿团体／组织／服务⨁voluntary labour / workers 义工