英语词汇actinium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	actinium
词根词缀	Online Etymology Dictionary actinium n. radioactive element discovered in 1899, from Greek actin-, comb. form of aktis (genitive aktinos) "ray, radiance" (see actino-) + chemical suffix -ium.
随便看	recursion recursive recurvo- recusal recusant recuse recyclable recycle recycling red -red red- redact redaction redbird red-blooded redbreast redcap red cent redcoat red cross redd redden redder reddish

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