1580s, back-formation from proficiency or else from Old French proficient (15c.), from Latin proficientem (nominative proficiens), present participle of proficere "to make progress, go forward, effect, accomplish, be useful" (see proficiency). Related: Proficiently.
雙語例句
1. She's proficient in several languages.
她精通好幾種語言。
來自《權威詞典》
2. She is proficient at swimming.
她精通游泳.
來自《簡明英漢詞典》
3. She was very proficient in music.
她非常精通音樂.
來自《現代漢英綜合大詞典》
4. He proved to me that he was very proficient in driving a car.
他向我證明他開車技術非常熟練.
來自《簡明英漢詞典》
5. A great number of Egyptians are proficient in foreign languages.