refine
/rəˈfaɪn/
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v. 改善；精煉；提煉
- After testing the robot, the team refined its design to make it lighter and faster. 測試過機器人之後，團隊改良了它的設計，讓它更輕、更快。
其他意思
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v. 精煉, 改進, 提煉
When a substance is refined, it is made pure by having all other substances removed from it.
- Oil is refined to remove naturally occurring impurities.
也出現在：
字根
fin 結束；界限
re + fin + e再／往回 + 結束 + —