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The beauty of topological insulators lies in their robustness; their surface states are protected against disorder and imperfections.
You can't be that kid standing at the top of the waterslide, overthinking it. You have to go down the chute.
不要担心你在数学上遇到的困难;我敢保证我遇到的困难比你还大得多。
"故事是生活的镜子,反映我们内心最深处的渴望和恐惧。"
Wages depend on the price of necessaries required for the support of the laborer.
解释:能吞下船的大鱼,不会在细浅的溪水里遨游;在天空高飞的鸿鹄,不会在肮脏的水池栖息。
You have to be willing to sacrifice what you are for what you will become.