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BNC: 32850 COCA: 35186

dross

noun
/drɒs/
/drɑːs/
[uncountable]
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  1. (especially British English) something of very low quality; the least valuable part of something劣质品;糟粕
    • mass-produced dross成批生产的劣质品
    • The well-written dialogue separates this film from the usual teenage dross.精心撰写的对话将这部电影与一般的劣质青春片区分开来。
    • He considered the working class to be the dross of society.他认为工人阶级是社会的渣滓。
  2. (specialist) a waste substance, especially that separated from a metal when it is melted废料;(尤指金属熔化的)浮渣
    • The fire burns away the dross leaving the pure metal.火烧掉了渣滓,留下了纯金属。
  3. Word OriginOld English drōs (in the sense ‘scum on molten metal’); related to Dutch droesem and German Drusen ‘dregs, lees’.

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