我们要用科技改变能源结构，让绿色能源走进千家万户。

Every improvement in the circumstances of the society tends either directly or indirectly to raise the real rent of land, to increase the real wealth of the landlord, his power of purchasing the labour, or the produce of the labour of other people.

除非一个人爱过动物，否则他灵魂的一部分仍未觉醒。

煤炭企业要主动适应能源结构调整，加快转型升级。