—— 请按键盘 空白键 开始游戏 ——

The best time to plant a tree was 20 years ago. The second best time is now.
The power of abstraction is crucial in computer science, allowing us to focus on the essential aspects of a problem.
电影是一种艺术形式,它不仅仅是娱乐,更是对社会现实的反映和批判。