The transformation of the coal industry must rely on technological leadership, and green development is the only way forward.
I'm fascinated by medicine because it's the line between life and death.
天下最痛苦的人是发现丈夫的勇敢只是虚张声势的妻子。
可持续性不是一种选择;它是我们共同的责任。
我在数学上花费的时间越多,我就越感到兴奋。