—— 请按键盘 空白键 开始游戏 ——

In business, if you're not moving forward, you're falling behind.
The study of mathematics is a constant dialogue between the concrete and the abstract.
及时采拮你的花蕾,旧时光一去不回。今天尚在微笑的花朵,明日便在风中枯萎。