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数学之美在于它能够揭示现实的隐藏结构。
The beauty of mathematics lies in its ability to reveal the hidden structures of reality.
Topological insulators are a prime example of how theoretical predictions can lead to experimental discoveries that reshape our understanding of the physical world.
并不存在一个自由美国和一个保守美国的区别 - 只有团结的美利坚合众国。