He's very competent in his work.

他非常胜任自己的工作。

《牛津词典》

youdao

Several studies suggest that men feel the need to appear competent in all realms, while women worry only about the skills in which they've invested heavily.

多项研究表明，男性认为有必要在所有领域都表现出自己的能力，而女性只担心耗费她们大量精力的技能。

youdao

Applicants need to meet the University of London minimum entrance requirements and be fully competent in English.

BBC: Richard Dawkins

The inquiry said the consultant radiologist's techniques were out-dated, and he was not competent in certain areas of his work.

BBC: Cancer 'blunder' doctor quits Lancashire hospital

We are very professional, caring, compassionate, and competent in asking for payment.

FORBES: Financial Holistics: A Patient-centric Approach to Collecting Unpaid Medical Bills