to improve on sth
1.+ original, previous version比…更好;改进
I found that the film improved on the book.我觉得这部电影比原著好看。
2.+ record, time超越;刷新
He will be aiming to improve on last year's winning time of 10.3 sec.他将计划刷新去年10.3秒的获胜成绩。
3.+ offer提高
He must give Sotheby's 30 days to match or improve on any offer that he accepts.他必须给苏富比30天时间以给出与他所能接受报价相同或更高的报价。