I teach physics. I must first let others know that I know enough about physics to teach them. That is not bragging.

作为一名物理老师，我有责任让同学们知道我有足够的能力教授他们物理知识，这不是在吹牛。

youdao

I want to teach you physics.

我是物理老师。

youdao

I want to teach you physics.

我是物理老师。

youdao