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復雜容易，簡單難。

The robustness of topological states against local perturbations is a testament to the power of topology in protecting quantum information.

政府不應該涉足商業。

In the silence of the desert, you can hear the heartbeat of the earth.

The law isn't justice. It's a very imperfect mechanism. If you press exactly the right buttons and are also lucky, justice may show up in the answer.