英语词汇in vain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	in vain
词根词缀	词根记忆： adv. 徒然The gained grain drained away with the rain,all the pains were in vain again.收获的谷物随雨水流失了,所有辛劳又白费.
随便看	single single out singlet singleton singspiel singular Sinhalese Sinic sinister sink sink-hole Sinn Fein Sino- sinophobe sinsemilla sinuate sinuation sinuous sinus Sioux sip siphon sir sire siren

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。