英语词汇proficient的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	proficient
词根词缀	proficient 熟练的 pro-, 向前；-fic, 做，词源同efficacy, fact。引申词义熟练的。
随便看	then thence thenceforth the netherworld the nitty-gritty the Northern Lights the North Pole the Noughties the Occident theocracy theodolite the Old Bailey the Old Bill theology the Olympic Games theophany theorem theoretical theorist theorize theory theosophy the Paralympics the peloton the Pole Star

英语词根词缀词典收录了25228条英语词根词缀词条，基本涵盖了全部常用英语词汇的词根、词缀及词根记忆法解析，是记忆英语词汇的必备工具。