—— 请按键盘 空白键 开始游戏 ——

Mathematical reasoning may be regarded rather schematically as the exercise of a combination of two faculties, which we may call intuition and ingenuity.
数学推理可以相当系统地看作是两种能力的结合运用,我们可以称之为直觉和独创性。
农业不仅仅是一门生意,而是一种生活方式。
Leadership means making tough decisions today for a better tomorrow.
你跑得越多,他们追得越紧。