Their teacher thumped her pen on her book.

他们的老师把她的钢笔重重地摔在她的书上。

《柯林斯英汉双解大词典》

The children played under the watchful eye of their teacher.

孩子们在老师的看护下玩耍。

《牛津词典》

The children were surprised by the sudden entry of their teacher.

老师突然进来使孩子们感到意外。

《牛津词典》

he says. Or,high school students cannot seem to understand something their teacher is explaining.

VOA: special.2010.06.27

Their teacher gives them a paper and it's one page long.

他们的老师只给了一页的论文作业。

How long课堂 - SpeakingMax英语口语达人

You prove to your teacher that you understand the authors by being able to put their meaning in other words -in other words, to say the author is intending to say something, not just that the text says something and this is what it says, with your exam then being one long screed of quotation.

你们用自己的话写出文章的含义,以此向老师证明你们理解作者的意图,换句话说，要告诉老师作者想表达什么，而不仅仅是文本说的什么内容，然后在试卷上来一大段,冗长的引用。

耶鲁公开课 - 文学理论导论课程节选

Principal Hoana Pearson paid tribute to the young photographers and their teacher, Ruth Lemon.

UNESCO: Te Kura A Rito O Newton students win UN Photo Awards

Or they could speak to a trusted adult such as their teacher or doctor.

BBC: Calls from suicidal young rising

Their teacher, Ni Luh Mas Sriyati, was born into a line of performing artists and musicians.

BBC: High spirits in Bali