He is unusually adept in mathematical calculations.

他非常精通数学计算。

I have some acquaintance with English, but I do not know it well.

我稍懂些英语, 但并不精通。

We must work hard to acquire a good knowledge of English.

我们必须用功学习才能精通英语。

She acquired a knowledge of the English by careful study.

她认真学习而精通英语。

He shows complete mastery of his chosen subject.

他精通自的那门科目。

Because of her expertise, she is regarded as the uncrowned queen of music in Pakistan.

她精通音乐，被看作是巴基斯坦音乐的无冕之王。

Weapon-wise, the monk will be proficient with kama, quarterstaff and shuriken.

武器精通，武僧将擅长单镰，棍，和十字。

He has mastered every detail of the business.

他已精通生意的每一个细节。

To gain a complete mastery of English, one must study very hard.

要想精通英语就必须刻苦努力。

I admired the general who was a master of strategy.

我敬佩那位精通兵法的将军。

He became skilled in several tribal lingoes.

他精通族的语言。

I was proficient at my job.

我对工作很精通。

Mr. Taylor is thoroughly conversant with modern music.

泰勒先生对现代音乐很精通。

He is learned in the law.

他精通法律。

He is well versed in history.

他精通历史。

Howells was, despite his faintly old-maidish quality, the most professional of writers, and the most generously sympathetic of critics.

所有这些，使豪威尔斯成为最精通本行的作家和宽厚的批评家，只是有点婆婆妈妈。

Only practice can achieve mastery.

只有实践才能达到精通。

She is proficient at swimming.

她精通游泳。

Our technicist and highly skilled workers can installation and debugging the crane to the best functional mode to ensure trouble-free working time.

精通安装业务的技师和高级技工能够把起重机安装、调试到最佳工作状态，保证无故障工作时间。

Conversance with mechanism drawing and designing tool and fixture, to be familiar with manufacture process, good communication skill, fluent English with writing and reading.

精通机械制图及工装夹具设计制作，对制程的改善有独特的见解及经验；有相当的沟通、协调能力，英语读写流利。