"Is he married?"—"Not that I know of."

“他结婚了吗？”—“据我所知没有。”

《柯林斯英汉双解大词典》

"Your granddaddy don't care for 'em, neither," he threw in. "Not that I know of, leastways."

"你的祖父对他们都不喜欢，" 他插话说。 "至少，据我所知不是。"

《柯林斯英汉双解大词典》

You are kidding, not that I know of.

您开玩笑，没那回事儿。

youdao

We cannot tell whether they are 'blood diamonds' or not." "That will be part of the investigation because you still need people to say "Yes,I know these diamonds;

VOA: standard.2010.08.09

The problem is, I want to know if, in fact, I've got something that's not of the form I expect.

问题是,我希望知道如果输入的。

麻省理工公开课 - 计算机科学及编程导论课程节选

I am not a Dead Head, I am not, you know, sort of like, the kind of fan that followed them around.

我不是个死脑筋，我不是那种能追随他们到天涯海角的粉丝。

精彩音乐会 - SpeakingMax英语口语达人

This isn't proven yet, at least not that I know of.

NPR: What Does Watada Case Mean for Military Law?

"Not that I know of, " he answered.

CNN: AEG exec: I didn't know Michael Jackson abused drugs

Now, economic -- as I said yesterday, I'm not an economist but I do know that the business of predicting the future in terms of economics is tricky.

WHITEHOUSE: Press Briefing