—— 请按键盘 空白键 开始游戏 ——

一个灰色的回忆,怎能抗衡现在的生动与自由。
The arithmetic of modular forms is a reflection of the deeper symmetries of number theory.
Sustainability isn't just a trend—it's a responsibility we owe to future generations.
今天的挑战就是明天的机遇——前提是我们以正确的心态面对它们。