improve /ɪmˈpruːv/ ●imˈprove on sth ( imˈprove upon sthmore formal) to achieve or produce sth of a better standard or quality than sth else完善;改进◆There are a few points in your work that you could improve on. 你的工作中有几个地方有待改进。◆The Kenyan girl improved on her previous best performance (= in a race). 那名肯尼亚女选手超越了自己以往的最好成绩。◆These results cannot be improved upon. 这些成果无法超越。[v + prep]