obligatoryadj.强制性的;义务的;必须的
obligatory protection义务性保护
obligatory front lamp强制性前灯
obligatory referendum强制复决
obligatory suppression强制性抑制
obligatory expenditure必支费
obligatory arbitration强制仲裁
obligatory intuitivism义务直觉主义
obligatory reinsurance固定分保
obligatory requirement强制性要求
obligatory notification有约束力的公告