From the standpoint of your genes, you dying for the life of three brothers is an excellent compromise 50% because the genes replicate by fifty percent more.

从你自身基因的角度看，你为了三个兄弟牺牲自己,是非常好的折中,因为基因复制超过。

耶鲁公开课 - 心理学导论课程节选

They only capture fifty percent of their marginal benefit.

他们只能得到50%的边际收益

耶鲁公开课 - 博弈论课程节选

Less than one percent, less than one percent of the real and personal property, in both South and North by the 1850s, was held by approximately fifty percent of free adult males.

不到百分之一,不到百分之一的不动产和动产,在十九世纪五十年代的南方和北方一样,由大约百分之五十的自由成年男性持有

耶鲁公开课 - 美国内战与重建课程节选

It adds fifty percent or a half to that and that means instead of two quarter notes that we now have three and we can do the same thing to any one of these other values here and that's how we get our triple relationships.

加上了百分之五十或者说一半的原音符值,这意味着除了有两个四分音符,我们现在有三个了,我们也可以在其他这些音符值后加上附点,这就是我们如何做到三倍形式的安排的

耶鲁公开课 - 聆听音乐课程节选

Well, we were raised by different parents and we have different genes We can't tell-- My brother and me might share all sorts of things in common but we have the same parents and the same genes, fifty percent of the same genes ? So how do we tell what's causing us to be alike?

因为我们的父母不同,我们有不同的基因,我哥哥和我,可能会有很多共同点,我们的父母是一样的,有50%的基因相同,那是什么导致我们相似的呢？

耶鲁公开课 - 心理学导论课程节选