1540s, probably from -cy + Latin proficientem (nominative proficiens), present participle of proficere "accomplish, make progress; be useful, do good; have success, profit," from pro- "forward" (see pro-) + root of facere "to make, do" (see factitious).
权威例句
1. His proficiency as a surgeon is well known.
他作为一名外科医生的水平是有名的.
2. He made little proficiency in literary accomplishments.
他在文学方面成就不多.
3. Evidence of basic proficiency in English is part of the admission requirement.
英语基本熟练是入学条件之一。
4. He plied his trade and gained proficiency in it.
他勤习手艺,技术渐渐达到了十分娴熟的地步.
5. Mr. Darcy spoke with affectionate praise of his sister's proficiency.