有由触笔操控的银幕键盘，需要很高的技巧去掌握。

It has a stylus-operated on-screen keyboard that takes great skill to master.

《柯林斯英汉双解大词典》

为了掌握语法知识，尽可能多做练习是有必要的。

In order to master grammar knowledge, it is necessary to practice as much as possible.

youdao

有那么一刻他似乎又把国家的命运掌握在自己手中。

He seems for a moment to be again holding the fate of the country in his hands.

《柯林斯英汉双解大词典》

Second skill we want you to have at the end of this course is the ability to use a vocabulary of computational tools in order to be able to understand programs written by others.

我们想让你们在课程结束时,掌握的第二个技能,是有能力使用计算工具的语言,用来理解,别人编写的程序。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's a little... I think that concept is a little bit easier to grasp. It's like a definite rule, and

不过这个有点……我认为这个概念掌握起来稍微容易点。因为有明确的规则，而且是

韩国人经常犯的失误 - SpeakingMax英语口语达人

What is the mole? Mole is a more practical value, something that we can handle tangibly.

什么是摩尔，它有实际值，我们可以很明白的掌握的。

麻省理工公开课 - 固态化学导论课程节选