—— 请按键盘 空白键 开始游戏 ——

The only difference between a rat and a human is that a rat learns from experience.
如果人类不能在我有生之年登陆火星,我将会非常失望。
everything will be ok.
The first erroneous assumption is that quality means goodness, or luxury, or shininess, or weight. Quality means conformance to requirements.