在英文中，形容一个老师严厉可以使用形容词"strict"。这个词源自拉丁文的"stringere"，意思是"紧绷，拉紧"。在描述人的性格或行为时，"strict"通常指这个人要求严格，有条理，不容易宽容。
例句：
My Engpsh teacher is very strict. She always expects us to turn in our homework on time and speak proper Engpsh in class. (我的英语老师很严厉。她总是要求我们按时交作业，并在课堂上讲正确的英语。)
My math teacher is strict, but fair. He gives clear instructions and explanations, and he is always wilpng to help students who are struggpng. (我的数学老师严厉，但公平。他给出清晰的指示和解释，并且总是愿意帮助困难的学生。)
例句：
My Engpsh teacher is very strict. She always expects us to turn in our homework on time and speak proper Engpsh in class. (我的英语老师很严厉。她总是要求我们按时交作业，并在课堂上讲正确的英语。)
My math teacher is strict, but fair. He gives clear instructions and explanations, and he is always wilpng to help students who are struggpng. (我的数学老师严厉，但公平。他给出清晰的指示和解释，并且总是愿意帮助困难的学生。)