Experience is a hard teacher because she gives the test first, the lesson afterwards.

经验是一名苛刻的老师，因为她总是先考试再给你上课。

youdao

She is a teacher who has much teaching experience.

她是一位有丰富教学经验的教师。

youdao

Marshalling the notes of lecture is one experience; the opportunity to argue with a teacher is another.

整理课堂笔记是一种经验，跟老师进行辩论是另一种。

youdao

While a good story is a close second, experience has always been the best teacher.

FORBES: How to Use Storytelling as a Leadership Tool