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TOEFL BNC: 8664 COCA: 10637

refinement noun CHANGE

[ U ] the process of making a substance pure提煉;提純;精煉

The refinement of raw opium yields other drugs, such as morphine.生鴉片經過提煉産生其他藥物,如嗎啡。

[ C or U ] a small change that improves something(精細的)改進,完善

These refinements have increased the machine's accuracy by 25 percent.經過這些改進,機器的準確率提高了25%。
Clearly, the hypothesis does need some refinement, in the light of these surprising results.很顯然,從這些令人驚訝的結果來看,該假設確實需要進一步完善。

refinement noun POLITENESS

[ U ] a quality of politeness and education文雅;高雅;有教養

She's the personification of culture and refinement.她是文化與教養的化身。

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