The coal industry must deepen supply-side structural reforms and improve supply quality.
The best way to predict the future is to invent it.
关于神,我无法知道他们是否存在或他们是什么样的,因为这个问题太晦涩,而人的生命又太短暂。
The quest for a unified theory of physics is one of the greatest intellectual adventures of our time.
The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.