写作很简单:你只需要坐在那里盯着一张白纸,直到额头上冒出冷汗。
Writing is easy: All you do is sit staring at a blank sheet of paper until drops of blood form on your forehead.
拓扑绝缘体的美在于它们的鲁棒性;它们的表面态受到对称性和拓扑的保护,使它们对某些类型的无序免疫。