学生们应该掌握一门第二语言。

Students are expected to master a second language.

《柯林斯英汉双解大词典》

短篇小说是一种很难掌握的艺术形式。

The short story is a difficult art form to master.

《牛津词典》

这一证据和我们已掌握的情况完全相符。

This evidence ties in closely with what we already know.

《牛津词典》

So Klawans argues, and I quote, that "sacrifice involves in part the controlled exercise of complete power over an animal's life and death."

因此克洛文认为，“献祭在某种程度上是一种,掌握动物生死的权力象征“

耶鲁公开课 - 旧约导论课程节选

Learn it and master this and master all of these steps and you will master the English language step by step.

掌握这一句型以及其他所有句型，你就能一步一步地说一口流利的英语了。

Do you mind 课堂 - SpeakingMax英语口语达人

So, if you propagate that through the whole year, and you have the basic mastery of the concepts, 50 is a pass.

如果你一整年都在认真学，那你就可以掌握基本的概念,50分就可以通过。

麻省理工公开课 - 固态化学导论课程节选