To promote the high-quality development of the coal industry, we must rely on technological innovation and intelligent upgrading.
财富和权力是多余的,对于那些能享受简单快乐的人来说。
我出生于非洲。我之所以来加州,是因为在这里,新技术可以得到推广应用,而且,这里没有具有威胁性的竞争对手。