compulsoryadj.强制的;势在必行的;义务的
compulsory measuresn.强迫手段
compulsory parasite强迫寄生物
compulsory benefits强制性津贴
compulsory mediation强制调解
compulsory detention强制拘留
compulsory execution强制性执行,强制执行
compulsory principle强制原则
compulsory evolution强制式演进
compulsory standards强制性标准
compulsory educationn.义务教育