masteredadj.精通的v.精通，掌握（动词master的过去式和过去分词）mastern.主人；硕士；专家vt.控制；精通adj.主要的；主人的；精通的master curriculum硕士课程master tachometer主转速表master rs protest海事报告书master completely完全精通／支配master rs account所有主账master bevel gear主伞齿轮master spring leaf主弹簧片master key storage主密钥存储器Master Datum Plane主基准面Master of Commerce商业硕士