Yahoo香港字典 搜尋

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1. Oxford Dictionary

   proficiency

   • IPA[prəˈfɪʃnsi]

   英式

   • n.
     a high degree of skill; expertise

   • noun: proficiency, plural noun: proficiencies

2. • 釋義

   n.

   名詞

   • 1. a high degree of skill; expertise he demonstrated his proficiency in Chinese