—— 请按键盘 空白键 开始游戏 ——

To truly understand the cosmos, we must first understand the smallest particles that make it up.
Writing is my way of fighting against forgetting.
可持续性不是一种选择;它是农业和食品生产未来的必需品。
We are never as happy or as unhappy as we imagine.
The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.