改进,完善 improve by giving great attention to details
refine on〔upon〕 sb/sth
We shall have to refine on our methods of advertising.
我们得进一步改进做广告的方法。
He refined upon the older methods.
他对陈旧的方法做了细致入微的改进。
The author is planning to refine on his works of five years ago.
作家打算把5年前的著作改得更完美些。
They refined on the methods of teaching.
他们使教学方法精益求精。
Modern medical techniques refine on those of the past.
现代医疗技术比过去的医疗技术要优越。