英语词汇per annum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	per annum
词根词缀	词源： 1601, from L., lit. "by the year," from per (see per) + annum, acc. sing. of annus "year" (see annual).
随便看	extension extensive extent extenuate extenuating exterior exterminate extermined external extinct extinction extinguish extirpation extol extort extortion extra extract extraction extracurriculum extradite pony Ponzi scheme pooch poodle

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。