单词	nostoc
释义	nostoc noun nos·​toc ˈnä-ˌstäk  : any of a genus (Nostoc) of usually filamentous cyanobacteria that fix nitrogen Word History Etymology New Latin First Known Use 1650, in the meaning defined above
随便看	opercules operculi- operculum operculums opere citato operetta operettas operettist operettists operon operons operose operosely operoseness operosenesses operosity operous opes opest opg oph Ophelia ophelimity opheodryses ophi-

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