单词	flexagon
释义	flexagon noun flex·​a·​gon ˈfleksəˌgän plural -s : a folded paper figure that can be flexed along its folds to expose various arrangements of its faces Word History Etymology flex entry 1 + -agon (as in hexagon) First Known Use 1954, in the meaning defined above
随便看	echeloned echeloning echelonment echelons echenees echeneid echeneididaes Echeneis echeneises eches echeveria echeverias echeverría Echeverría (Álvarez) echeverría álvarez echi echia echidna echidnae echidnas Echidnidae echidnophagae echidnophagas echimyine Echimys

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