英语词汇optimistic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	optimistic
词根词缀	Online Etymology Dictionary optimistic adj. 1845, from optimist + -ic. Related: Optimistical (1809); optimistically.
随便看	styptic styrene Styrofoam Styx st³- su- suad-, suas-, suav- suasion suasive sua, suad, suas(suav) suave suavity sub- sub sub-acute subaerial subaltern subaqueous sub-aqueous sub-arctic sub-atomic sub-category subclass subclavio- subcommittee

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。