proficiency
🇺🇸
/prəˈfɪʃnsi/
🇬🇧
/prəˈfɪʃnsi/
noun
R
being very good at doing something because you have learned and practiced it
His proficiency in playing the piano comes from years of daily practice.
他彈鋼琴的嫻熟技巧來自多年的日常練習。
translation
熟練
詞形變化
Plural
proficiencies