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。
The PAC learning framework provides a formal way to quantify the learnability of a concept class.
作家必须是所有形式暴政的叛徒，包括多数人的暴政。
无限的耐心会带来立竿见影的效果。
Every challenge is an opportunity to learn and improve.
Coal enterprises must actively adapt to energy structure adjustments and accelerate transformation and upgrading.
每一颗水果都讲述着从种子到餐桌的辛勤、耐心和奉献的故事。
The future belongs to those who believe in the beauty of their dreams.
有时候是这段旅程教会了你很多关于目的地的事。
Quality should never be compromised for short-term gains.