Applicants will be expected to have (a) good command of English.

申请人必须精通英语。

《牛津词典》

A good command of English and Computing is a must as far as the position is concerned.

这个职位要求英语和计算机良好。

youdao

It should be emphasized that applicants for this position should have a good command of English.

需要强调的是，此岗位的申请者应精通英语。

youdao

Her easy command of English, relentless hustle and good looks got her noticed by a patron, a manager in the London office of commercial film producer Radical Media.

FORBES: Magazine Article

His fluency in the French language may stand him in good stead in the corridors of Brussels although his command of English is said to be less sure.

BBC: Profile: Greek Pasok leader Evangelos Venizelos