Proficiency in

Proficiency definition, the state of being proficient; skill; expertness: proficiency in music. S...

The meaning of PROFICIENCY is advancement in knowledge or skill : progress.

The purpose of this article is to reveal how to build the automatic process of word recognition f...

Latin America continues to rank low on the English proficiency index, with most countries falling...

proficiency中文::精通…，點擊查查權威綫上辭典詳細解釋proficiency的中文翻譯，proficiency的發音，音標，用法和例句等。