The only thing I'm sure of is that I know nothing.
每回收一吨纸就能拯救17棵树,这不仅是生意,更是留给后代的遗产。
Nature is the greatest teacher.
The future of coal lies in cleaner technologies and smarter resource management.
The dairy industry must evolve to meet the demands of a changing world.
写作需要一颗心。没有激情,我什么都不是。