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.
"I'm drawn to stories that have a kind of moral ambiguity, where the lines between right and wrong are blurred."
I don't want to just be a singer. I want to be an entertainer.
真理，通过理性思考和观察自然得出。
即使世界正在转向低碳解决方案，石油和天然气的创新也不会停止。