煤炭开采的创新不仅仅是技术问题,更是思维方式的转变。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
所有人的生活里都有一部历史。
I live for the moments when I can do something that nobody else can do.
A leader has the vision and conviction that a dream can be achieved. He inspires the power and energy to get it done.