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单词 the cambrian
释义

the Cambrian


DEFINITIONS1
  1. 1
    the period between 543 and 490 million years ago, in which the explosion of many forms of invertebrate life occurred
    The Cambrian period produced the most intense burst of evolution ever known.
    Submitted by:
    Emran Khoshrouye Ghiasi from Iran, Islamic Republic of on 24/08/2019
Noun☞the Cambrian
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更新时间:2024/11/11 6:57:58