—— 请按键盘 空白键 开始游戏 ——

做间谍就是生活在一个充满怀疑和猜疑的世界里。
"To be a spy is to live in a world of constant doubt and suspicion."
The essence of a free government consists in an effectual control of rivalries.
算法设计既是一门艺术也是一门科学。