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Innovation in coal mining isn't about reinventing the wheel, but about making the wheel more efficient and environmentally friendly.
You can't change what you refuse to confront.
Sustainability isn’t an option; it’s the only path forward for agriculture.
建筑的强度不仅在于其材料,还在于使用它的人的精神。
生活是世界上最罕见的事情。大多数人只是存在,仅此而已。