I'm not guessing. I really know.

我不是猜测，我真的知道。

youdao

I'm not guessing; I really know.

我不是猜，我确实知道。

youdao

I really know nothing about this.

这事我可不知道。

youdao

"I really know many people who were waiting for these results and they were thinking: if the opposition wins, I will stay in this country and try to continue my business or my studies.

VOA: standard.2009.08.29

That's including me and that's why I went into the subject in the first place cause I was aware of how little I really know of this.

那也包括了我,所以我首先研究这个主题,因为我意识到,我对这个主题知之甚少。

麻省理工公开课 - 电影哲学课程节选

When a student says, you know, "Thanks for that lesson, I really enjoyed it," or you know, or something like that,

当一个学生说，“感谢那门课，我真的很喜欢它，”或者其他类似的话，

在公园相遇的老师 - SpeakingMax英语口语达人

On the other hand, I use Facebook very sparingly and I only friend those people who I really know.

FORBES: The Only Privacy Policy That Matters is Yours

Ms. DANA PERINO (White House Press Secretary): And so I got asked about the Cuban missile crisis, and I was panicked a bit because I really know about -nothing about the Cuban missile crisis.

NPR: Ron Paul Brings the Youth Vote

And I feel like I really know her.

CNN: Food allergy diagnosis 'an inexact science'