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单词 tetrahedron
释义

tetrahedron

noun
/ˌtetrəˈhiːdrən/
/ˌtetrəˈhiːdrən/
(geometry)
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  1. enlarge image
    a solid shape with four flat sides that are triangles
    Topics Colours and Shapesc2
    Word Originlate 16th cent.: from late Greek tetraedron, neuter (used as a noun) of tetraedros ‘four-sided’.
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更新时间:2024/12/23 16:01:55