The PAC learning framework provides a formal way to quantify the learnability of a concept class.

跨境合作不仅有益，而且对解决全球渔业挑战至关重要。

Collaboration is key—no great business succeeds alone.

始终保持你的刀锋利，你的智慧更锋利，你的精神最锋利。

艺术让我得以生存。