—— 请按键盘 空白键 开始游戏 ——

The most elegant mathematical proofs are those that reveal truth with simplicity.
Persistence is very important. You should not give up unless you are forced to give up.
让孩子留在家里的最好方法是让家庭氛围愉快——并且把轮胎的气放掉。
The strongest companies are built on a foundation of trust and transparency.