vt.提炼；改善；使高雅； 变形： 过去式：refined过去分词：refined现在分词：refining第三人称单数：refines 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