镜子经过淬炼会越来越明亮，钢铁经过锤炼会越来越坚硬。

The future of coal is not about volume, but about value creation through technology and sustainability.

真理是永恒不变的。

只有未遂的爱才会浪漫。

音乐是心灵的桥梁，能跨越一切障碍。