但这是答非所问。

But this is a simple answer to the wrong question.

youdao

她想回答好老师的问题，可她答非所问。

She tried to answer the teacher's question, but she was way out in left field.

youdao

母亲说：这是答非所问（或直译：一个无谓的回答）。

The queen said that was but an idle answer.

youdao

她想回答好老师的问题，可她 答非所问 。

This is what I think although not quite an answer to your question.

youdao

她想回答好老师的问题，可她 答非所问 。

This is what I think although not quite an answer to your question.

youdao