那是个错误，我们永远不会再犯了。

That was a mistake. We'll never do it again.

《柯林斯英汉双解大词典》

我一定会努力改正我不得体的行为，并保证不会再犯。

I will endeavor to correct my behavior and I am sure it will never happen again.

youdao

我们都倾向认为人类会变得越来越聪明，我们不会再犯过去的错误。

We would all like to think that humankind is getting smarter and wiser and that our past blunders won't be repeated.

youdao