—— 请按键盘 空白键 开始游戏 ——

The act of writing is an act of optimism.
Diversity in tree species isn't just ecology—it's risk management for our planet's lungs.
Experience is a good school, but the fees are high.
可持续性不是一种选择;它是我们对下一代的责任。
气候研究不仅是一个科学问题,也是一个社会问题。