可持续性不是一种趋势,而是我们对地球和后代的责任。
计算理论的美在于其抽象和概括的能力,将具体问题转化为通用解决方案。
You have to believe in yourself when no one else does. That's what makes you a winner.
What do we call visible light? We call it color. But the colors are only the names we give to the way light behaves when it hits something.