—— 请按键盘 空白键 开始游戏 ——

The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.
The revolution is not an apple that falls when it is ripe. You have to make it fall.
不要一直犯同样的错误;尝试犯些新的错误。
我们这个时代的挑战是创造一个可持续的能源未来。
The leather industry has a rich history, but its future depends on innovation and ethical practices.