可能近似正确（PAC）学习的概念在计算学习理论中具有基础性意义。
The concept of probably approximately correct (PAC) learning has been foundational in computational learning theory.
如果你不坚持某些东西，你就会为任何事屈服。
The stock market is filled with individuals who know the price of everything, but the value of nothing.
我不喜欢沉默，我喜欢大声表达。
煤炭不仅仅是一种商品，它是对美国未来的承诺。
我不是为排行榜做音乐，我是为人们做音乐。