refine

vt.

1. 提炼，精炼；精制
   Crude oil can be refined into various petroleum products.

   原油可炼制成各种石油产品。

2. 提去（杂质等）[（+out/away）]
   Much of the really nutritive material actually was refined out of the foods.

   在食品加工过程中很多真正有营养价值的物质实际上却丧失了。

3. 使升华，使……的道德完善
4. 使精练；使优美；使文雅
   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。

vi.

1. 被提炼，被提纯；变纯净
2. 变得优雅精美
3. 琢磨，推敲[（+on/upon）]
   The firm's top man refined on his management style.

   公司总裁对管理作风作了精微的改进。