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单词 survival of the fittest
释义 survival of the fittestn.(名词)
  1. Natural selection conceived of as a struggle for life in which only those organisms best adapted to existing conditions are able to survive and reproduce.适者生存:被看成是一场生命竞争的自然选择,只有那些最能适应生存环境的生物体才能存在和繁衍
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