英语词汇operational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	operational
词根词缀	Online Etymology Dictionary operational adj. 1922, "pertaining to operation," from operation + -al(1). Meaning "in a state of functionality" is from 1944.
随便看	self-winding self-worth Selina Seljuk sell seller Sellotape sellout sel, sul, sult seltzer selvage -selves sem- semantic semantico- semantics semaphore sematic sembl semblable semblance -sembl-, -simul-, -simil- seme semei- semeio-, sema-, semato-, semat-, semasio-, semio-, -semic, -semia

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。