—— 请按键盘 空白键 开始游戏 ——

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.
你和我各有一个苹果,如果我们交换苹果的话,我们还是只有一个苹果。但当你和我各有一个想法,我们交换想法的话,我们就都有两个想法了。