A key insight in learning theory is that the complexity of a hypothesis class is crucial for generalization.
气候变化对海洋生物构成最大威胁，我们必须立即采取行动减轻其影响。
语言的美在于它能传达不可言喻的东西，使无形的东西变得有形。
"A novel is a world you can hold in your hands."