I don't know. I really don't know.

我不知道我真的不知道我…

youdao

I really don't know, but I still want to know.

我真的不知道，但我还是想知道。

youdao

I really don't know you can play table tennis.

我真的不知道你会打乒乓球。

youdao

Their house crashed. As for everyone else, I really don't know what's going on.

VOA: special.2010.02.01

They claimed that they were of the same race as the gods, and I really don't know of anybody else who made that claim.

他们认为自己和神明是同一个种族,我确实不知道还有另外的人有过这样的说法

耶鲁公开课 - 古希腊历史简介课程节选

I really don't know at this point but uh, I don't know.

目前我还不清楚，还没有想好。

哥伦比亚大学的教程 - SpeakingMax英语口语达人

"I really don't know what will happen if that money doesn't come through, " said Storrie.

BBC: Hart gives players salary pledge

The truth of the matter is that with San Miguel, I really don't know what's going on.

CNN: Estrada Denies Cronyism

If Johann Lamont won't listen to people like the STUC, then I really don't know who she will listen to.

BBC: Margaret Curran