怎样用英语表示 这些句子

他是一位经验丰富的老师。
He is an experienced teacher.

考试不及格对她来说是从未有过的经历
Failing an examination is an experience she never had before.

小孩子要亲自体验一些事情才能从中学习
Children must experience some things for themselves bfore they can learn from them.

他是一位经验丰富的老师
He is an experienced teacher
考试不及格对她来说是从未有过的经历
She ever does not take a test does not pass an examination
小孩子要亲自体验一些事情才能从中学习
The child wants to experience some matters to be able personally to study

二楼的答案非常好

He is an experienced teacher. So he has much experience in teaching.
She has not got the experience of fail in the exam.