—— 请按键盘 空白键 开始游戏 ——

痛苦越深,艺术越深刻。
The deeper the pain, the more profound the art.
The P versus NP problem is one of the most important problems in computer science.
释义:擅长游泳的人容易溺水,擅长骑马的人容易摔跤。
Collaboration across sectors is essential to achieving meaningful progress in emissions reduction.