n.熟练，精通，娴熟...

His proficiency as a surgeon is well known.他作为一名外科医生的水平是有名的.He made little proficiency in literary accomplishments.他在文学方面成就不多.Evidence of basic proficiency in English is part of the admission requirement.英语基本熟练是入学条件之一。...

proficiency的音标：proficiency的英式发音音标为：[prə'fɪʃnsɪ]proficiency的美式发音音标为：[prə'fɪʃənsi]...