I'm not a teacher.

我不是一个老师。

youdao

I'm no longer a teacher. (I'm not a teacher any longer.)

我不再是一名老师。

youdao

Sometimes, they make me feel that I'm not a teacher but a friend.

有时候，他们让我觉得我不是一个老师，而是朋友。

youdao

I'm not going to write them on the board like a little high school teacher.

我不会在黑板上写出来,像一个高中老师那样。

麻省理工公开课 - 固态化学导论课程节选

Since I'm not a math teacher, I won't dock him any points for extra effort!

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