She works as a teaching assistant.

她担任助教。

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He's also a teaching assistant for a freshman urban-studies class.

他也担任大学新生城市学班的助教。

《柯林斯英汉双解大词典》

Each team is assigned a mentor -- either me or a teaching assistant -- who advises them about issues such as team dynamics and other problems that are tough for inexperienced workers to solve.

每个小组指派一名指导老师——我或者助教，指导老师负责对诸如团队动态变化和其他一些缺乏经验的工作者难以解决的问题提出建议。

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A former teaching assistant recently wrote to the New York Times about his experience with grade expectations.

VOA: special.2009.03.12

That's why I hope you'll stay with-- you'll each find a teaching assistant and will stay with that person.

这就是为什么我希望...,你们每人都找一位助教,和他多交流

耶鲁公开课 - 金融市场课程节选

I am a teaching assistant. Ah, I'm a part of a choir on campus.

我现在是一名助教。我还参加了学校的一个合唱团。

正在写论文 - SpeakingMax英语口语达人

Ms Carr, a teaching assistant in the girls' class last term, was arrested on suspicion of murdering them.

BBC: Agony of Holly and Jessica's parents

The inquiry began after a teaching assistant detected problems in a take-home test.

BBC: Harvard University file picture

Jacqueline Stanley, a teaching assistant, described how ill Mrs Mann looked when she came into the school to discuss her return after the half-term period.

BBC: Helen Mann