voluntary aid志愿工作者
voluntaryadj.自愿的;志愿的n.(教堂礼拜仪式前后或进行期间的)乐器独奏
voluntary surgical contraception自愿手术节育
voluntary consulting and testing自愿咨询检测
voluntary disclosure credibility自愿性信息披露诚信
voluntary information disclosure自愿性信息披露
voluntary supply of public goods公共物品自发供给
voluntary information publishing自愿性信息披露
Voluntary non-remunerated donor无偿献血者
voluntary military service system募兵制