—— 请按键盘 空白键 开始游戏 ——

What I claim is to live to the full the contradiction of my time, which may well make sarcasm the condition of truth.
The most valuable resource in our industry isn't under the ground; it's the people who make things happen.
描绘春天花开时的愁绪,连珠帘都懒得卷起
物体的加速度与所受的合外力成正比,与物体的质量成反比。加速度的方向与合力的方向相同。