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.
记忆是脆弱的，容易被时间和政治扭曲。
The beauty of cinema is that it allows us to explore the complexities of human emotions.
The cinema is a mirror by which we often see ourselves.
安静可克制躁动，沉稳可克制浮气，宽宏大量能克服心胸狭窄，平缓可克制急躁。
我们的选择，而非能力，更能展现真实的自我。
