拓扑绝缘体的美在于它们的鲁棒性;它们的表面态受到保护,不受无序和缺陷的影响。
"Fear is inevitable, I have to accept that, but I cannot allow it to paralyze me."
The Backstreet Boys are more than just a band - we're a family.
当那些有趣的东西成为习惯的时候,问题就来了。我认为这就是我们文化中发生的事情。快餐已成为日常用餐。