—— 请按键盘 空白键 开始游戏 ——

Energy independence strengthens economies and enhances national security.
你知道 72 法则,将数字除以 72,你想要的任何数字,这就是你的钱翻倍需要多长时间。
The center of our galaxy is a fascinating place where extreme physics takes place, and it's a privilege to study it.
The peculiar evil of silencing the expression of an opinion is that it is robbing the human race; posterity as well as the existing generation; those who dissent from the opinion, still more than those who hold it.