—— 请按键盘 空白键 开始游戏 ——

The teacher is the sun, the student is the moon. The teacher shines, and the student reflects.
The language of mathematics is universal, transcending cultural and linguistic barriers.
教学不是注满一桶水,而是点燃一把火
Challenges are opportunities in disguise.
The past is a foreign country; they do things differently there.