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	carrier carrier pigeon carrion Carroll, Lewis carrot carrousel carry carryall carrying capacity carrying charge carry-on carryout carryover car seat carsick carsickness Carson City Carson, Kit Carson, Rachel cart carte blanche cartel Carter, James (Jimmy) Cartesian coordinate carthorse

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