A couple of hours, because typically there's just one battle; one side beats the other and that's the war for now.

几个小时,一般来说只有一次战斗,一方攻打另一方,这就是战争

耶鲁公开课 - 古希腊历史简介课程节选

In the case of the coin toss, there are only two, but I'm saying in general there could be an infinite number.

在抛硬币的例子里,只有两个取值,但是一般都会有无限个可能值

耶鲁公开课 - 金融市场课程节选

They're complicated, so the general rule has been that only accredited investors should participate in them.

PP很复杂,所以一般的原则是,只有可信投资者才能参与其中

耶鲁公开课 - 金融市场课程节选