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单词 boneblack
释义

WordReference Random House Unabridged Dictionary of American English © 2024
bone•black  (bōnblak′),USA pronunciation n. 
  1. Chemistry, Fine Arta black, carbonaceous substance obtained by calcining bones in closed vessels, used as a black pigment, a decolorizing agent, etc.
Also, bone black′. 
  • bone1 + black 1805–15

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更新时间:2025/7/23 16:15:56