—— 请按键盘 空白键 开始游戏 ——

使变量可变很容易。控制恒定的持续时间是诀窍。
Spend as much time crafting the subject line of an email as the message itself because the subject line is often the only thing people read.
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."