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TOEFL IELTS BNC: 7830 COCA: 6600

to make something pure or improve something, especially by removing unwanted material(尤指去除不需要的杂质而)精炼,提炼,提纯

Crude oil is industrially refined to purify it and separate out the different elements, such as benzene.原油经过工业提炼来提纯并且分离出诸如苯之类的不同元素。

C2 to improve an idea, method, system, etc. by making small changes改进;完善;使精炼

Engineers spent many months refining the software.工程师们花了数月来完善这个软件。
TOEFL IELTS BNC: 7830 COCA: 6600
refine

verb

ADVERB | VERB + REFINE | PREPOSITION | PHRASES ADVERBslightly稍加改善greatly大大改善further進一步改善increasingly日益改進constantly, continually, continuously持續改進;不斷完善The information system is constantly refined and updated.信息系統在不斷完善和更新。gradually逐步改進VERB + REFINEattempt to, try to試圖改善continue to繼續改善help (to)幫助改進PREPOSITIONinto提煉成⋯Sugar cane is refined into sugar.從甘蔗中提煉出食糖。PHRASEShighly refined高度精製supplies of the highly refined white sugar高度精製白糖的供應
TOEFL IELTS BNC: 7830 COCA: 6600
refine verb
filter (refine oil/sugar) improve1 (refine a theory)
TOEFL IELTS BNC: 7830 COCA: 6600
refine
To make something better: improve, enhance, remedy...
To treat a product: pulp, refine, tan...

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