英语词汇protract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	protract
词根词缀	protract 拖延，延长 pro-, 向前；-tract, 拉，词源同draw, tractor.
随便看	cost costal costard costermonger costume costumier cosy cot coterie coterminous cottage cottaging cotton couch cougar cough could coulis coulomb council counsel count countenance counter counteract

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。