—— 请按键盘 空白键 开始游戏 ——

The more we study the more we discover our ignorance.
Sustainability is no longer an option; it's a necessity for any business that wants to thrive in the 21st century.
妈妈必须同时喂养孩子的身体和精神,且精神上的需求更重于身体的需要。