- voluntary
 - ['vɔləntəri]
 - adj. 自愿的;志愿的;自发的;故意的
n. 志愿者;自愿行动 
同义词
           
       反义词
           
       参考例子
           - 1.People had rights but also duties, and these duties were not voluntary.
 - 人们有权利但是也有责任,这些责任并不是自愿的。
 
- 2.Recruit teachers and voluntary workers to teach English, Computer and other subjects in Yunnan.
 - 招募教师及义务工作者到云南任教英语、电脑及其他科目;
 
- 3.Voluntary withdrawal from the market, recall from consumers and destruction of the products by the importer.
 - 进口商自愿从市场上撤回并从消费者手中召回缺陷产品,然后销毁。
 
英文解释
           - n.
 - 1.(military) a person who freely enlists for service
 - 2.composition (often improvised) for a solo instrument (especially solo organ) and not a regular part
 
- adj.
 - 1.of your own free will or design; not forced or compelled
 - 2.controlled by individual volition
 
网络释义
               - voluntary
 - 自愿的; 自愿的,随意的; 志愿的; 无偿的;
 
- voluntary muscle
 - 随意肌; 横纹肌; 随意肌(横纹肌);
 
- voluntary attention
 - 随意注意; 有意注意; 随意注重; 有意注重;
 
- voluntary liquidation
 - 自动清盘; 自愿清算; 自動清盤; 自动清理;
 
- voluntary code
 - 自律守则;