The minister is calling for mandatory prison sentences for people who assault police officers. 部长呼吁把袭警者须受的惩罚定为强制监禁。
Athletes must undergo a mandatory drugs test before competing in the championship. 运动员在锦标赛前必须进行强制性药检。
In 1991, the British government made it mandatory to wear rear seat belts in cars. 1991年，英国政府强制要求汽车后座乘客系安全带。
Synonyms: compulsoryobligatory