计算学习理论中的挑战在于理解学习算法的能力和局限性。
The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.
I was told I had the voice of a choirboy but the look of a headmistress.
企业要发展，必须把食品安全放在第一位。
所有生物来到这个世界时都带着对正义的记忆。