proficiency
n.
1. 熟练, 精通(in)
2. 进步
proficiency in English
精通英语
proficiency in music
擅长音乐
He made little proficiency in literary accomplishments.
他在文学方面成就不多。
Any of12 levels of proficiency at the grade of black belt in martial arts such as judo and karate.
段在东方武术中，黑腰带的级别精通达12级中的任一级，如柔道和空手道
名词proficiency
1. skillfulness in the command of fundamentals deriving from practice and familiarity
同义词：technique
2. the quality of having great facility and competence
同义词