—— 请按键盘 空白键 开始游戏 ——

Time does not heal all wounds; some remain, becoming part of us.
时间不会治愈所有伤口;有些伤口会留下,成为我们的一部分。
Education is the foundation of sustainable forestry practices.
Collaboration across industries is the key to unlocking breakthroughs in green chemistry.
The concept of probably approximately correct (PAC) learning has been foundational in computational learning theory.
如果时空穿梭是可能的,那从未来穿越回来的旅客在哪里呢?