可持续性不再是可选项，而是生存的必需品。
Sustainability isn't an option anymore—it's a necessity for survival.
历史学家是反向的先知。
加强国际合作，推动煤炭行业技术和管理水平的提升。
I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.
"The most important thing in a book is the story. The illustrations are there to support and enhance the story, not to overshadow it."
在你和世界的斗争中，站在世界一边。