1.
well versed in mathematics, the arts, etc
精通数学、 文科等
2.
Adequately versed in a subject.
精通的在某一学科上很精通的
3.
1. Mastery of Chinese + mastery of English + extraordinary talent
一、精通母语＋精通英文＋卓越才干
4.
My friend is proficient in three languages.
我的朋友精通三种语言。
5.
a school master well seen in music
一个精通音乐的校长
6.
proficient in theuse of radar equipment
精通雷达设备之使用的
7.
proficient and confident in performance.
精通的和表演自信的。
8.
know one's beans
熟悉(精通)自己的业务
9.
She is accomplished in sewing.
她精通于缝纫工作。
10.
have sth. at one's fingers'ends
熟练掌握某事，精通某事
11.
He was unlearned in computer application.
他不精通电脑运用。
12.
Professor Smith has the microcomputer at his fingers' ends.
史密斯教授精通微机。
13.
Know something of everything and everything of something .
样样都要懂，专业须精通。
14.
He was very smart and knew his business.
他很聪明能干，精通本行。
15.
demonstratea mastery of Arabic
显示对阿拉伯语的精通
16.
She acquired a knowledge of the English by careful study.
她认真学习而精通英语。
17.
Sir Lancelot was adept at wielding his sword
兰斯洛特爵士精通剑术。
18.
3. Mastery of English + extraordinary talent
三、精通英文＋卓越才干。