proficiency in a language

美 [prəˈfɪʃnsi ɪn ə ˈlæŋɡwɪdʒ]英 [prəˈfɪʃnsi ɪn ə ˈlæŋɡwɪdʒ]
  • 语言水平
proficiency in a languageproficiency in a language
  1. And remember there is a difference between native fluency and proficiency in a language , and I am proposing the latter .

    记住,母语的流利和对一门语言的精通是有区别的,等会儿我会提出我的观点。