By convention sweet is sweet, bitter is bitter, hot is hot, cold is cold, color is color; but in truth there are only atoms and the void.
按惯例,甜是甜的,苦是苦的,热是热的,冷是冷的,颜色是颜色;但实际上只有原子和虚空。
The real challenge is not growing more, but growing better with fewer resources.
可持续水产养殖不是一种选择;而是我们对地球应尽的义务。
计算复杂性的美在于它能够根据问题的固有难度对问题进行分类。