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单词 obsidian
释义

obsidian


DEFINITIONS1
  1. 1
    a type of almost black rock that is like glass
    Obsidian - formed in places such as the mouth of a volcano as a result of the intense heat of an eruption melting sand - was first used as tips for spears.
    Submitted by:
    Thao Dao from Viet Nam on 22/07/2018
Noun☞obsidian
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更新时间:2024/12/23 11:40:28