直到那是他才意识到他犯了多么严重的错误的翻译：Until that is how serious he didn't realize he had made a mistake 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

He did not realize until it was how he made a serious mistake

Until that is how serious he didn't realize he had made a mistake

Was he only then realizes him until that to make the how serious mistake

It was not until he realized that he is guilty of a serious error

Until that is how serious he didn't realize he had made a mistake