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TOEFL IELTS BNC: 5386 COCA: 6360
deficiency
dɪfɪʃənsi diˈfɪʃənsi dɪˈfɪʃənsi
Word forms: plural deficiencies
1 N-VAR （尤指身体所需物质的）缺乏，缺少，不足 Deficiency in something, especially something that your body needs, is not having enough of it. （尤指身体所需物质的）缺乏，缺少，不足

  • They did blood tests on him for signs of vitamin deficiency.

    他们给他验了血，以检查是否有维生素缺乏的迹象。

  • There are serious deficiencies in the numbers of suitable aircraft.

    符合要求的飞机数量严重不足。

SYN lack, want, deficit, absence
2 N-VAR 缺点;缺陷;瑕疵 A deficiency that someone or something has is a weakness or imperfection in them. 缺点;缺陷;瑕疵 [formal]

  • ...a serious deficiency in our air defence.

    我们在空防上的严重缺陷

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