(1)(使)改善(改进，提高) ((cause to) become better)[I，I+adv，T+n]：His work has hardly/greatly～d. 他的工作几乎没有/已有很大的改进。Her health is gradually/slowly～ing.健康状况正在逐渐/慢慢地好转。 Wine～s with age. 酒越陈越好。She has～d (herself) in English/health. 她的英语有了提高/健康状况有了好转。～in knowledge/skill 增长知识/提高技能;～one's writing/English/marks in school/quality of service 改进书法/提高英语水平/提高在学校的成绩/提高服务质量;be anxious to～oneself professionally 渴望在专业方面得到提高;

(2)改进，提高 (make sth better than) [I+adv(on/upon)]：～on the invention/the translation/one's suggestion改进发明/译文/建议;～on one's previous performance in swimming提高以前的游泳成绩;He played it with a brilliancy and fire that could scarcely be～d upon. 他的演奏才华横溢，充满激情，简直好得不能再好了。

(3)利用(make good use of)[T+n]：～one's leisure by studying 利用空闲时间学习;～the occasion for one's own end利用这个机会谋求私利;～sth into an excuse 利用某事作为借口;We had two hours to wait，so we～d the time by seeing the city. 我们还要等两个小时，因此就利用这段时间浏览市容。

→im′provable adj 可改进的;im′provement n