创新不是一种选择;它是煤炭行业生存的必要条件。
What we love we shall grow to resemble.
我希望您结合他们的动机好结果来考察。
The most important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
写作是一种勇气的行为,是对宇宙沉默的挑战。