adj.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
He made a voluntary statement to the police. 他自愿为警方作供。
Many social services are still provided by voluntary societies in our city. 在我们的城市，许多社会服务仍然是有志愿团体提供的。
We rely entirely on voluntary contribution. 我们全靠自愿捐赠。
She's very taken up with voluntary work at the moment. 她目前大部分时间和精力都用在志愿工作上了。
Although I'm retired, voluntary work keeps me in the swim (of things). 我虽已退休，但仍做些义务工作，以便了解当前的情势。
The organization is run on a voluntary basis. 这个组织是由志愿人员管理的.
