精通的英语：master、be proficient in、have a good command of、be good at、be accomplished in。
1、master
英 [ˈmɑ:stə(r)] 美 [ˈmæstə(r)]
n.大师;硕士;主人（尤指男性）;男教师。
vt.精通，熟练。
If only I could be master of this subject.
我多么希望能精通这门学科。
2、be proficient in
英 [bi: prəˈfɪʃənt in] 美 [bi prəˈfɪʃənt ɪn]
v.熟练，精通。
Every night watch officer must be proficient in combat.
每一个守夜官员都必须精通格斗。
3、have a good command of
英 [hæv ə ɡud kəˈmɑ:nd ɔv] 美 [hæv e ɡʊd kəˈmænd ʌv]
精通;能驾御，很会;晓畅
You do have a good command of English.
你的英语真的掌握地很好。
4、be good at
英 [bi: ɡud æt] 美 [bi ɡʊd æt]
v.擅长;健;精通;熟谙。
A man can be an artist in anything it depends on how good he is at it!
一个男人可成为一个艺术家，这要看他对该物有多精通！
5、be accomplished in
英 [bi: əˈkɔmplɪʃt in] 美 [bi əˈkɑmplɪʃt ɪn]
v.擅长，专长，精通。
The project will be accomplished in a few more days.
再过几天，整个工程即可竣工。
[词典] master; be proficient in [at]; have a good command of; be good at; be accomplished in;
[例句]她非常精通音乐。
She was very proficient in music.
他对法语的精通是众所周知的。
His mastery of the French language was proverbial.本回答被提问者和网友采纳
[词典] master; be proficient in [at]; have a good command of; be good at; be accomplished in;
[例句]她非常精通音乐。
She was very proficient in music
inhave a good command of master
be good at
例句:
申请人必须精通英语。
Applicants will be expected to have good command of English.
还有一种表达那就是have a good knowlege of computer