octahedronn.
英 ,ɒktə'hiːdrən; -'hed- | 美 ,ɑktə'hidrən
中文n. 八面体
词根词源
octahedron (n.)1560s, from Greek oktahedron, neuter of oktahedros "eight-sided," from okta- "eight" (see octa-) + hedra "seat" (see sedentary). Related: Octahedral.
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