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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。

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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