verb · to refine or purify a substance, such as oil, sugar, or metals

这间工厂主要从事原油精炼业务。

adjective · experienced, skilled, and efficient in action or character

他在处理突发事件时表现得十分精炼。

adjective · to refine one's skills or writing; concise, polished, and effective in style or expression

他的文章语言精炼，读起来朗朗上口。