Boys test better in hand-eye coordination, making them more proficient at ball sports.

男孩在手眼协调测试中更出色，这使他们更精通球类运动。

youdao

He's proficient at his job.

他的工作效率很高。

《牛津词典》

And he was very proficient at measuring atomic mass.

他对测量原子质量很精通。

youdao

The goal is for all students to perform at the proficient or advanced level.

VOA: special.2011.02.03

And he was very proficient at measuring atomic mass.

他对测量原子质量很精通。

麻省理工公开课 - 固态化学导论课程节选

Today's generation is far more proficient at text messages, social media and online video.

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At Guidepost they talk in terms of solutions and are extremely proficient at delivering those solutions.

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As you can see, people are only proficient at sowing opportunities, and least proficient at growing them.

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