improve
improveimprove[ɪmˈpruːv]im'prove on sth (also im'prove upon sth more formal) 1.■to achieve or produce sth of a better standard or quality than sth else改进； 做出比…更好的成绩:There are a few points in your work that you could improve on.你的工作中有几点可以改进。The Kenyan girl improved on her previous best performance }(= in a race)&b{.那位肯尼亚姑娘超越了自己以往的最佳成绩。2.■Improve on/upon sth can be used in the passive. improve on/upon sth 可用于被动语态:These results must be improved upon.必须超过这些成绩。[G]v+prep
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