有时最简单的旋律承载着最深刻的情感。
I'm not afraid of storms, for I'm learning how to sail my ship.
The fight against viruses is a continuous battle, and science must always stay ahead.
人类心智是一套信息处理机器,由自然选择设计来解决我们狩猎采集祖先面临的适应性问题。