我很幸运，有位好老师。

I was fortunate in having a good teacher.

《牛津词典》

一个好老师应该鼓励学生独立思考。

A good teacher should stimulate students to think independently.

youdao

他是个好老师，总是很公正。

He was a good teacher and was always fair.

youdao

Good question, so there is this little reading head kind of like in an old phonograph player that does move back and forth and in and out depending on the implementation.

好问题，这就像,老留声机里的小读头,它通过来回移动,来完成不同的操作。

哈佛公开课 - 计算机科学课程节选

John Now, you're going to hear John and I go back and forth a lot, well I'm certainly old time, but I'm also an old time Lisp programmer.

现在，你会听到我和,来回的讲好多次，好吧我当然是个老学究，但是我也是一个老lisp程序员。

麻省理工公开课 - 计算机科学及编程导论课程节选