* Sex *

*爱爱吧*

on the sexiness.

收益递减了

Why do I just have random pains in my body?

为什么我的身体到处都痛

Need to gain speed before...

需要加速了...

But Greg instead smuggled it into Amy.

但格雷格却给了艾米

her facial muscles' ability to contract.

脸部肌肉功能萎缩

that you could have the derivative of zero here and not

你可能会得到导数为零 但不一定最大化

marginal utility more and more of X does less and less good

其效用也会越来越不如原来的好

Chlorinated fluorocarbons that were and are responsible for

含氯的碳氟化合物以前是现在也是

so that reducing CFCs

所以要减少氟利昂

Well, they abandoned that sort of thing eventually.

最终他们放弃了

So we want to keep the idea that Ui(x) and Vi(y)

我们依然同意 Ui(x)和Vi(y)