英语词汇boulder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	boulder
词根词缀	词源： 1670s, variant of M.E. bulder (c.1300), from a Scandinavian source akin to Swed. dial. bullersten "noisy stone" (large stone in a stream, causing water to roar around it), from bullra "to roar" + sten "stone." Or the first element may be from buller- "round object," from P.Gmc.* bul-, from PIE* *bhel- (2) "to inflate, swell" (see bole).
随便看	in sum insuperable in support of insurance insure insurgent insurmountable insurrection intact intake intangible in tears integer integral integrate integrated integration integrity integument intelcepter intellect intellectual intelligence intelligent intelligentsia

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。