在计算学习的背景下，“可能近似正确”（PAC）学习的概念为理解学习算法的效率和可行性提供了一个框架。
In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.
"I believe in the power of imagination to transform the world."
可持续性不是一种趋势，而是我们对后代的责任。
The best traders are those who can stay focused on their goals.