Oct 16, 2020the senator and his staff 参议员及他的工作人员(单数) senators and their staffs参议员及他们的工作人员(复数) 《文馨当代英汉词典》第页staff词条 staff(集合用法)全体职员,人. Jan 17, 2008i've always been taught that the word 'staff' (as in employees of a company) is plural, so there is no such word as 'staffs'. Engineer---senior engineer---staff engineer --- principle --- senior principle --- fellow 管理路线:engineer---senior engineer---staff engineer --- manager --- senior manager--- director --- senior.