| 11. | refine the air from noxious vapors |
| 排出有毒烟雾净化空气
|
| 12. | refine crude oil into various petroleum products |
| 将原油炼制成各种石油产品
|
| 13. | refine (up) on |
| 琢磨…；推敲…；改进…；超过…
|
| 14. | refine (up) on the wording |
| 字斟句酌
|
| 15. | refine (up) on the methods of teaching |
| 使教学方法精益求精
|
| 16. | refine a metal |
| 炼金属
|
| 17. | refine copper |
| 炼铜
|
| 18. | polish [polish up, refine ] one's style |
| 使自己的文体变得优雅
|
| 19. | refine sugar |
| 炼糖
|
| 20. | elevate and refine public taste |
| 提高公众的鉴赏力
|