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The boundary between the quantum and classical worlds is not as sharp as we once thought.
量子世界和经典世界之间的界限并不像我们曾经认为的那样清晰。
The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it.
皮革行业必须适应不断变化的消费者需求,否则就有被淘汰的风险。