refine

vt.

1. 精炼; 精制; 使纯净
   • They refine sugar using this way.
     他们用这种方法精制糖。
   • The purpose of oil refinery is to refine crude petroleum.
     炼油厂的主要工作是提炼原油。
2. 使文雅高尚; 使去掉粗俗言行; 使变得完善
   • He has refined his taste and manners.
     他已使自己的趣味爱好和举止仪态变得高雅完美。