adj. ç²¾éçï¼çç»ç
n. è½æï¼èæï¼ä¸å®¶
åè¯ä¾å¥
She is proficient at swimming.
她精é游泳.
She was very proficient in music.
她é常精éé³ä¹.
He proved to me that he was very proficient in driving a car.
ä»åæè¯æä»å¼è½¦ææ¯é常çç».
A great number of Egyptians are proficient in foreign languages.
å¾å¤åå人é½ç²¾éå¤è¯ã
I think I'm quite proficient in both
written and spoken English.
æ认为æå¨è±è¯è¯»åæ¹é¢ç¸å½çç».