I have already known the truth about it.

我已经知道了这件事的真相。

youdao

I'm not sure what I want to be but I'm sure that you have already known.

我不确定我想成为什么，但我相信你已经知道了。

youdao

You may have already known that some famous people, like Thomas Edison and Steve Jobs, didn't do very well at school or even failed to finish school.

你可能已经知道一些名人，如托马斯·爱迪生和史蒂夫·乔布斯，他们在学校成绩并不出色，甚至未能完成学业。

youdao

The students examine an issue, review what is already known, think about what they have learned and come to some conclusion.

VOA: special.2009.04.30

Many of the jurors would have known Socrates or certainly would have heard of him and he says would have had already an unfavorable opinion formed about him by this earlier generation of accusers.

多数的陪审团成员早就都认识苏格拉底,或至少听过这号人物,他自道，他们早就已经,有不利于他的主张,来自于那些前代的指控者。

耶鲁公开课 - 政治哲学导论课程节选

At least two of the allies -- Britain and France -- have already made known their objection to inclusion of their air forces under such limitations.

CENTERFORSECURITYPOLICY: Center For Security Policy

With current disclosure requirements, we might already have known about this but, back in the dark ages of 2002, no one had any idea that this was going on.

FORBES: Why Should We Care About Corporate Interlocks?

But we should have known that already through our past experience with the political process.

FORBES: The Looming Failure of Obamacare, Part 3: Rent-Seeking