单词	quadricentennial
释义	quadricentennial noun quad·​ri·​cen·​ten·​ni·​al ˌkwä-drə-sen-ˈte-nē-əl  : a 400th anniversary or its celebration Example Sentences Recent Examples on the Web Near the time of the Columbus quadricentennial in 1892, the Columbian Exhibition at the World’s Fair in Chicago was a sensation. Steve Hendrix, Washington Post, 9 Oct. 2017 Word History First Known Use 1882, in the meaning defined above
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