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

VOA: special.2010.06.27

He's a better teacher than Scotus or Aquinas, and the text seems almost to suggest that Milton can't do without his own teacher, Edmund Spenser.

他是一位比苏格拉底和阿奎那更好的良师，这些文章几乎暗示了弥尔顿,没有老师埃蒙德·斯潘塞则不能做到弃绝那些诱惑。

耶鲁公开课 - 弥尔顿课程节选

the teacher is not completely calm when he or she takes the action.

老师在动武的时候情绪不完全地稳定。

反对体罚 - SpeakingMax英语口语达人

That's no excuse for talking back to your teacher or cutting class or dropping out of school.

VOA: standard.2009.09.08

Rather than thinking of a teacher necessarily, one can think of an individual acts more like a mentor or coach in certain settings.

不必要一定要有个老师，你可以想成一个人在某个领域,作为指导者或是教练。

麻省理工公开课 - 媒体、教育、市场课程节选

"He's the type of teacher you either love or hate."

他是那种让人又爱又恨的老师“

耶鲁公开课 - 死亡课程节选