| 词组 | refine on or refine upon |
| 释义 | refine on or refine uponv.1To make better; improve. 改进；改良。◆ Mary was asked to refine on her first outline to make it clearer and more exact.玛丽被要求修改她的第一份大纲，使它更清楚、更准确。2To be better than; surpass. 优于；超过。◆ Modern medical techniques refine on those of the past.现代医疗技术胜过以前的医疗技术。 |
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