The teacher was a martinet.

那位教师是个严要求的人；

They discover that the new teacher is a martinet.

他们发现新来的老师非常严格。

Our dean is an understanding counselor, not a martinet.

我们的教务长是一位善解人意的好顾问, 而非厉行严格纪律者.

Thomson , A . J . and A . V. Martinet . 1986 . A Practical English Grammar. Oxford University Press.

全建强: 《高级英语语法详解》,安徽教育出版社,2001年.

The teacher was a martinet . He kept his students at their studies when they preferred to be in a video game arcade.

那位教师是个严要求的人；学生想去电子游戏室的时候，他却要他们不停地学习。