PHRASAL VERB 签约，受雇于(某组织);报名(参加某课程) If you sign on for something, you officially agree to work for an organization or do a course of study by signing a contract or form. 签约，受雇于(某组织);报名(参加某课程)
Andrew joined up in 1989 and was planning to sign on for nine more years. [VERBPREP.PREP. noun]
安德鲁于 1989 年加入并打算再续约 9 年。
He had signed on for a driving course. [VERBPREP.PREP. noun]