So it's true that Ale knows that at least one person in the room has a pink hat on their head.

所以艾尔确实知道,至少有一个人戴着粉色的帽子

耶鲁公开课 - 博弈论课程节选

I saw an old lady wearing a big classical hat today.

今天我看到一个年迈的女人戴着一顶很大的复古帽子。

英国皇家赛马会 - SpeakingMax英语口语达人

Well I'll reveal the facts now: that in fact Ale knows that Kaj has a pink hat on his head.

我已经告诉你们了,艾尔只知道卡佳戴着粉色帽子

耶鲁公开课 - 博弈论课程节选

The Essex stood half over the other prophet as if it were pleased to guard what it had finally brought down. The man didn't look so much like Haze lying on the ground on his face without his hat or suit on. A lot of blood was coming out of him and forming a puddle around his head.

埃塞克斯看着这个先知，好像很高兴地守卫着,自己撞倒的这个人，这个男人看起来与海斯并不相像,没有戴着帽子或穿着西装趴在地上，一大堆血,从他的体内涌出，在头部附近形成了一个水坑状的东西。

耶鲁公开课 - 1945年后的美国小说课程节选

And it's true that Kaj knows that Ale has a pink hat on his head.

而且卡佳也知道艾尔戴着粉色的帽子

耶鲁公开课 - 博弈论课程节选

Here is a fact, so is it common knowledge that -- is it common knowledge that at least one of these people has a pink hat on their head?

我这样说这是共同知识吗,至少有一个人戴着粉色的帽子,这是共同知识吗

耶鲁公开课 - 博弈论课程节选

So again, they both know that someone in the room has a pink hat on their head: it is mutual knowledge that there's a pink hat in the room.

但是他们都知道,至少有一个人戴着粉色帽子,至少有一顶粉色帽子是相互知识

耶鲁公开课 - 博弈论课程节选

But Ale does not know that Kaj knows that he is wearing a blue, a pink hat, and Kaj does not know that Ale knows that Kaj is wearing a pink hat.

但艾尔不知道卡佳知道他戴着粉色帽子,卡佳也不知道艾尔知道,卡佳戴着粉色帽子

耶鲁公开课 - 博弈论课程节选