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TOEFL BNC: 15794 COCA: 17928
impurity
noun /ɪmˈpjʊərəti/
singularimpurity
pluralimpurities
  1. 1
    [C] an amount of a substance, especially one that is not valuable or is of low quality, that is present in another substance 混杂进的物质;(尤指无价值的或劣质的)杂质

    new methods for removing the impurities in wine 去除酒中杂质的新方法

     Synonyms and related words
    General words for materials and substances: substance, material, powder...
  2. 2
    [U] the quality of not being pure 不纯;不洁

    the impurity of the air breathed by mineworkers 矿工们所呼吸的不纯净空气

     Synonyms and related words
    Dirty: dirty, filthy, messy...
TOEFL BNC: 15794 COCA: 17928
TOEFL BNC: 15794 COCA: 17928

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