单词	nonagon
释义	nonagon noun no·​na·​gon ˈnō-nə-ˌgän  : a polygon of nine angles and nine sides Example Sentences Recent Examples on the Web The cylindrical core is a dull metallic silver with several irregular nonagon fuel assemblies arranged in its center. Daniel Oberhaus, Wired, 15 May 2020 Word History Etymology Latin nonus ninth + English -gon — more at noon First Known Use circa 1639, in the meaning defined above
随便看	terrapins terraqueous terrar terraria terrarium terrariums terras terrases Terrassa terrasse terrassed terrasseed terrasseing terrasses terrassing terrazzo terrazzos terre Terre Haute terre verte terre à terre terre, cape Terrebonne terreens Terrell grass

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