senior year高年级senioradj.地位较高的；高级的；年长的；资深的n.上司；年长者；长辈；大四学生Senior Chief Ocean Systems Technician二级海洋系统军士长Senior UNIX System Administrator UNIX资深系统管理员senior high school vocational classes高中职业班 [America]Senior Manager's Information Analysis扁平化原则Senior Government Counsel Bribery Case律政高官受贿案Senior Assistant Director of Education高级助理署长Senior Fireman Certificate Examination消防队目证书考试Senior Citizens' Recreational Activity情感冷漠Senior Chemist for Process Development高级工艺过程开发化学师Senior Reserve Officers Training Corps高级后备军官训练团