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BNC: 7879 COCA: 10457

extraction

noun
/ɪkˈstrækʃn/
/ɪkˈstrækʃn/
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  1. [uncountable, countable] the act or process of removing or obtaining something from something else提取;提炼;拔出;开采
    • oil/mineral/coal, etc. extraction石油、矿物、煤等的开采
    • the extraction of salt from the sea从海水中提取盐
    • Commercial peat extraction is destroying many threatened habitats.商业泥炭开采正在摧毁许多受威胁的栖息地。
    • Methods of extraction vary from mine to mine.开采方法因矿而异。
  2. [uncountable] of… extraction (formal) having a particular family origin(有…)血统;族裔
    • an American of Hungarian extraction匈牙利血统的美国人
    • a young American lawyer of Irish extraction一位有爱尔兰血统的年轻美国律师
    Topics Family and relationshipsc2
  3. [countable] (specialist) the process of removing a tooth拔牙
    • I didn’t like having my teeth drilled but extractions were infinitely worse.我不喜欢让我的牙齿被钻孔,但是拔牙却糟糕得多。
  4. Word Originlate Middle English: via Old French from late Latin extractio(n-), from Latin extrahere ‘draw out’, from ex- ‘out’ + trahere ‘draw’.

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