我不怕失败,我怕不去尝试。
I'm not afraid to fail, I'm afraid not to try.
PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。
Collaboration across borders is essential—fish don't recognize national boundaries, and neither should our efforts to protect them.
Climate change poses the greatest threat to marine life, and we must act now to mitigate its effects.