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CET-4 CET-6 考研 TOEFL IELTS BNC: 7830 COCA: 6600
refine
re·fine / rI5faIn ; rI5faIn /verb T
1. to improve a method, plan, system etc by gradually making slight changes to it〔逐渐地、微小地〕改进,完善:
Car makers are constantly refining their designs.汽车制造商在不断完善他们的设计。
2. to make a substance purer using an industrial process净化; 提炼:
oil refining石油的提炼

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