When it comes to physics, I know nothing.

谈到物理学，我一无所知。

youdao

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 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