单词	gray literature
释义	gray literature noun : written material (such as a report) that is not published commercially or is not generally accessible Example Sentences Recent Examples on the Web There is no gray literature now: Everything is a magnet for immediate attention and misunderstanding. James Heathers, The Atlantic, 23 Oct. 2021 Word History First Known Use 1975, in the meaning defined above
随便看	bemuses bemusing bemuzzled bemuzzles bemuzzling ben ben chervil Ben Lomond ben marcato Ben Nevis ben nut ben oil Ben Sira ben trovato Ben Venue Ben-Gurion ben-teak Bena benab benadryls benamed benamee benames benami benaming

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