英语词汇permafrost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	permafrost
词根词缀	Online Etymology Dictionary permafrost n. 1943, coined in English by Russian-born U.S. geologist Siemon W. Muller (1900-1970) from perm(anent) frost.
随便看	midway Midwest midwife midwifery midwinter mien miff miffed miffy MiG might mightily mightiness mighty mignon migr -migr- migra migraine migrant migrate migration migratory migr-, migrat- mikado

英语词根词缀词典收录了54763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。