数学家是将咖啡转化为定理的装置。
"A mathematician is a device for turning coffee into theorems."
我写作是为了理解。我写作是为了不忘却。
A brand's value lies in its ability to meet the evolving needs of consumers.
煤炭开采造就了现代英国,即使我们向更清洁的能源过渡,也必须尊重这一传统。
PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。