英汉词典

1. 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.

    e.g. Attention is drawn to a special voluntary course in Commercial French...
           一门特别的商务法语选修课引起了大家的关注。
    e.g. The scheme, due to begin next month, will be voluntary.
           定于下个月开始实施的方案是自愿性质的。