—— 请按键盘 空白键 开始游戏 ——

In the silence of the desert, you can hear the heartbeat of the earth.
The interplay between quantum mechanics and information theory is a rich field of study.
Old soldiers never die. They just fade away.
船在港口是安全的,但那不是船被建造的目的。
自然实验可以为经济问题提供有价值的见解。
Innovation in technology allows us to see farther into space than ever before.