英语词汇unsure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	unsure
词根词缀	词源： c.1400, "not safe against attack," also "lacking certainty," from un- (1) "not" +sure.
随便看	vitamin vitiate viticulture vitreous vitrify vitriol vitriolic vituperate vituperation Vitus viva vivacious vivacity viva voce vivd vive Vivian vivid vivify viviparous vivisect vivisection vixen detox detoxicate

英语词根词缀词典收录了31503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。