单词	octagonal
释义	octagonoctagon /ˈɑktəˌgɑn/ noun [countable] Etymology ETYMOLOGYoctagon Origin: 1500-1600 Latin octagonum, from Greek, from okta- eight + -gonon -gon math, geometry a flat shape with eight sides—octagonal /ɑkˈtægənl/ adjective:  an octagonal room
随便看	benevolently Bengali Ben-Gurion, David benighted benightedly benign benignity benignly Benin Benjamin bent benthic zone benthos benumbed benzene benzine Benz, Karl Benét, Stephen Vincent bequeath bequest berate Berbers, the bereaved bereavement bereft

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