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PROFICIENT English Definition and Meaning | Lexico.com

English dictionary definition of PROFICIENT along with additional meanings, example sentences, and different ways to say.

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查詢 「Proficient in or at」的人也找了：

  1. proficient in用法
    2.
  2. Proficient in or at
    3.
  3. Proficiency in
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  4. Proficient level
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  5. proficient in中文
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  6. Proficient in English
    7.
  7. Highly proficient
    8.
  8. Proficient noun
    9.