You have to be willing to sacrifice, to put in the time and effort.
数学证明的优雅常常反映了它所描述的算法的效率。
没有执行的愿景只是一个梦想。
Policy debates should be grounded in rigorous empirical analysis.
We are all connected, not just to each other, but to the land, the sky, and the sea.
推动煤炭工业高质量发展,必须依靠科技创新和智能化升级。
Writing is a way to make sense of the world. It’s a way to understand the chaos.