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.
他弹钢琴的娴熟技巧来自多年的日常练习。
translation
熟练
词形变化
Plural
proficiencies