v.精炼( refine的第三人称单数 )；精制；使纯净；使文雅高尚 双语释义：v.(动词)vt. 提炼purifyvt. & vi. (使)变得完善 polish; improvevt. 使文雅高尚 cause to become more cultured, polished in manners; get rid of what is coarse or vulgar英英释义： refine[ ri'fain ]v.improve or perfect by pruning or polishing