I know for a fact that baby corn is very expensive in Europe.

我确实知道玉米笋在欧洲是非常昂贵的。

《柯林斯英汉双解大词典》

You can know that for a fact.

你就可以了解到这样一个事实。

youdao

The reason why both of them failed is that they mistook the value relationship between natural rights and positive rights for a fact one.

康德和黑格尔失败的原因是： 他们将自然权利与实在法权利之间的价值关系错误地理解为事实关系。

youdao

He often commented on the fact that he was best known for a part he played for only three years.

VOA: special.2010.03.07

It's a kind of dare demonstrating not just his indifference to the crowd but in fact his scorn for it.

叶芝这种胆量,不仅说明他对大众的漠然,其实还是对它的蔑视。

耶鲁公开课 - 现代诗歌课程节选

So that would probably be de Broglie's answer for why, in fact, we're not observing the wavelength behavior of material on a day-to-day life.

所以那就可能是德布罗意关于,为什么我们无法再日常生活中,观测到物质的波动行为的答案。

麻省理工公开课 - 化学原理课程节选

GERMANIUM, for example, extends lifespan and does for a fact strengthen the immune system.

FORBES: Extradite Andrew Wakefield To Face Fraud Charges In The UK

Because I know for a fact that she happens to be an amazing doctor.

FORBES: The News From AOL Isn't Surprising. But The Reaction Is Disgusting.

We know for a fact that the Australians don't like to be under pressure.

BBC: Chris Gayle defies Australia with West Indies century