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obsidian

US [əb'sɪdiən]
UK [əb'sɪdiən]
  • n.黑曜石;黑曜岩
  • Web黑耀石;十胜石;黑矅石
Plural Form:obsidians  
obsidian
n.
1.
黑曜岩;黑曜石a type of dark rock that looks like glass and comes from volcanoes

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Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
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