volunteer相关例句和用法
Most of the relief work was done by volunteers..大部分救援工作都由志愿人员完成。
volunteer英英释义志愿者英释nnsomeone who does a job willingly without being paid
volunteer短语volunteer services,义工服务；志工服务台.短语
volunteer 真题例题真题例句...which provide a volunteer coach and pay a nominal fee to send students to regional and state competitions
