refine

过去式：refined过去分词：refined现在分词：refining第三人称单数：refines

1. vt. 提炼purify
2. vt. & vi. (使)变得完善 polish; improve
3. vt. 使文雅高尚 cause to become more cultured, polished in manners; get rid of what is coarse or vulgar

• refine speech使言谈文雅
• refine sugar制糖

• refine on〔upon〕改进; 斟酌
• refine on a method改进方法
• refine upon the wording斟字酌句

refine on精于；改进

1. The oil will be refined.
   这些石油将被精炼。
2. Their daily work is to refine crude oil.
   他们每天的工作是精炼原油。
3. Sugar, oil and metals are refined before use.
   糖, 油和金属在使用前须先提炼。
4. We shall have to refine on our methods of advertising.
   我们得进一步改进做广告的方法。
5. She will refine on her Bad points.
   她会改进她的缺点。
6. The author is planning to refine on his work of five years ago.
   作者打算把他5年前的著作修改得更完美些。
7. After30 years, the mature author was able to refine on the work of his youth.
   过去30年，这位作家已经成熟，他可以将年轻时候写的作品修改得更完美了。
8. Reading good books helps to refine our speech.
   读一些好书有助于使我们的言谈更优雅。