Student teachers are motivated to help Betty master certain materials.

扮演教师角色的学生被鼓励去帮助贝蒂掌握特定材料的内容。

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She longed to be her own master and be able to help others instead of being helped by them.

她渴望成为自己的主人，能够帮助别人，而不是被别人帮助。

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I couldn't help praising the master for his work.

我情不自禁地称赞师父的工作。

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because it's something that will help you master English step by step.

因为它能够帮助你一步一步地掌握英语口语。

have to 课堂 - SpeakingMax英语口语达人

To help students master English, you need a high-quality learning environment and very dedicated teachers, proportionate to the student population.

FORBES: English - The Language of Global Business?

The business schools at University of Notre Dame, Indiana University and MIT are looking to their parent universities' undergraduates to help diversify their master's of science classes.

WSJ: Chinese Flood U.S. Programs to Gain Edge

He was hastily drafted into Bonn, after only weeks as economics minister of the state of North Rhine-Westphalia, to help his new master fend off the advance of Oskarism.

ECONOMIST: Who really runs Germany?