proficiency /prә'fiʃәns/

释义

(n.) the quality of having great facility and competence
(n.) skillfulness in the command of fundamentals deriving from practice and familiarity

在词托邦里，「proficiency」是一只名词属性像素生物（法语词源 · 植物型生物，极稀有卡）。字母决定它的长相，词源决定体型，词频决定稀有度；收集它、用它造句升级，并在单词对战中记住它的词性。