包括白色背景在内的六种颜色代表了世界上所有国旗的颜色......这是一个真正的国际标志。
Innovation in coal mining isn't about reinventing the wheel, but about making the wheel more efficient and environmentally friendly.
The best way to predict the future is to create it.
能源转型必须是公正的,这是我们欠那些世代为国家提供动力的社区的。