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 workers高级职员senior synonym首异名,先定同物异名senior teacher高级教师senior tourism银发旅游senior project毕业设计Senior physics高中物理senior adviser高级顾问Senior Captain大校senior college高级学院Senior Colonel大校