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The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins?
全红婵在巴黎奥运会夺冠后说的话感动了很多人
Anarchy is the permissive cause of war; it creates an environment in which states have to rely on self-help to ensure their survival.
创新不仅仅是技术的问题;它关乎改变人们的思维和行动方式。