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calcium

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柯林斯高阶英汉双解学习词典释义
  • N-UNCOUNT
    Calcium is a soft white element which is found in bones and teeth, and also in limestone, chalk, and marble.
英汉词典释义
英英词典释义
  • Noun
    1. a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
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