英语词汇up and down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	up and down
词根词缀	词根记忆： adv. 上下地,到处,前前后后,来来往往He jigged up and down in excitement.他兴奋得又蹦又跳.
随便看	exsert extant extemporaneous extempore extemporize extend extensibility extension extensive extent extenuate extenuating exterior exterminate extermined external extinct extinction extinguish extirpation extol extort extortion extra extract

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。