| eng | refine | 
|---|---|
| rus | очищать; усовершенствовать, улучшать | 
| phon | rɪ'faɪn | 
| ex | oil refining Car makers are constantly refining their designs.  | 
| syn | purify, cleanse, clarify; improve | 
| part | verb | 
| eng_desc | - to improve a method, plan, system etc by gradually making slight changes to it - to make a substance purer using an industrial process  | 
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