单词	次模函数
释义	次模函数submodular function
随便看	compulsory compulsory acquisition compulsory arbitration compulsory attendance compulsory both way compulsory certification compulsory check-off clause compulsory cleaning machine for concrete compulsory commutation compulsory competitive tendering compulsory concrete mixer compulsory crossing compulsory dive compulsory education compulsory education act compulsory education law compulsory education statistics compulsory eradication compulsory fund compulsory heterosexuality compulsory ifr flight compulsory ifr flight (qbi) compulsory immunization compulsory insurance compulsory interest arbitration