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	unambitious un-American unanimity unanimous unanswered unapproachable unarmed unasked unassisted unassuming unattached unattainable unattractive unauthorized unavailable unavailing unavoidable unavoidance unaware unawares unbalanced unbearable unbeaten unbecoming unbeknownst

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。