Meaning of yán lì:
yán lì
严厉
Adjective
severe; strict
Lǎoshī duì xuéshēng de cuòwù fēicháng yánlì.
老师对学生的错误非常严厉。
The teacher is very severe with the student's mistakes.
Lǎoshī duì xuéshēng de jìlǜ yāoqiú fēicháng yánlì.
老师对学生的纪律要求非常严厉。
The teacher is very strict about the students' discipline requirements.