proficiencyKK [prəˋfɪʃənsi] /pɹəˈfɪʃənsi/发音名词1熟练、精通、擅长She showed great proficiency in handling difficult customers.她在应付难缠的客人方面非常熟练。2能力、程度、水准多指语言或技能等级The course requires an intermediate level of English proficiency.这门课程要求中级的英语能力。用这个字练口说→