当然，可能他们比较害羞，但是我觉得更重要的原因是他们没有信心去说这门他们正在教授的语言。

Now, it is possible they were shy but I feel their real reluctance came from not feeling confident enough to speak the language they were teaching.

youdao

优秀的教师应当很好地利用他们的嗓音去调动学生的学习激情，应当在所教授的语言方面有扎实的功底。

Ideal teachers are supposed to make good use of their voices to stimulate students to learn as well as have an adequate command of the language they are teaching.

youdao

我们有一个交际能力很强的方法来教授语言。

We have a very communicative approach to teaching languages.

《柯林斯英汉双解大词典》

He's still a professor at MIT, still publishes on language and thought, among other matters.

他现在仍然是麻省理工学院的一位教授，还在出版关于语言，思想，以及其他主题的读物。

耶鲁公开课 - 心理学导论课程节选

There are many Americans who believe that they need to teach their children language.

有很多美国人都认为,孩子们的语言需要他们去教授

耶鲁公开课 - 心理学导论课程节选

PROFESSOR: Part of Scheme, whoa, there's a Freudian slip, John thank you, John.

教授：Scheme语言的一部分，噢，这是个口误，谢谢你。

麻省理工公开课 - 计算机科学及编程导论课程节选