英语词汇operculum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	operculum
词根词缀	词源： 1713, from L. operculum "cover, lid," from operire "to cover, close" (see weir).
随便看	oceanography ocelot O.Celt. ocher ochlocracy ochre o'clock O.C.S. octa- octagon octagonal octahedron octane octant octave Octavia Octavian octavo octo- october October octogenarian octolateral octopus octoroon

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