自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
ADJ 自愿的;志愿的;主动的;自发的 Voluntary actions or activities are done because someone chooses to do them and not because they have been forced to do them.
Attention is drawn to a special voluntary course in Commercial French...
The scheme, due to begin next month, will be voluntary.
ADJ （工作）无偿的，义务性的 Voluntary work is done by people who are not paid for it, but who do it because they want to do it.
In her spare time she does voluntary work...
He'd been working at the local hostel for the handicapped on a voluntary basis.
ADJ （工作者）志愿的,无偿服务的 A voluntary worker is someone who does work without being paid for it, because they want to do it.
Apna Arts has achieved more with voluntary workers in three years than most organisations with paid workers have achieved in ten...
We depend solely upon our voluntary helpers.
ADJ （机构或组织）志愿的，义务性的 A voluntary organization is controlled and organized by the people who have chosen to work for it, often without being paid, rather than receiving help or money from the government.
Some local authorities and voluntary organizations also run workshops for disabled people...
It has been largely through the voluntary sector that the needs of victims have been met.