他熟练掌握了好几种现代语言。

He had a good grip of several modern languages.

youdao

是否真正熟练掌握了车辆驾驶技能？

Really familiar with the vehicle driving skills?

youdao

我们熟练掌握了我们的交易守则和方法。

We master our methodology and our trading rules.

youdao

You're saying I want that. Is that right, John?

你们熟练掌握了这一点，你的意思是？

麻省理工公开课 - 计算机科学及编程导论课程节选

Physicians over the years of having this instrument have learned how to be very sophisticated about looking at these pictures and diagnosing when something is wrong inside the chest, for example.

这些年来,使用这类设备的医生,已经熟练地掌握了,通过看这些X光片,来诊断,胸部疾病的方法

耶鲁公开课 - 生物医学工程探索课程节选