| 词汇 | heptagon |
| 释义 | heptagonWord family nounheptachlorheptachordheptadheptagonHeptagyniaheptahedronHeptameronheptameterHeptandriaheptaneheptapodyheptarchheptarchyHeptateuchheptathleteheptathlonadjectiveheptagonalheptagynousheptamerousheptandrousheptapodicheptarchicheptasyllabicheptateuchalheptatonic Shapes, patterns, Maths hep·ta·gon /ˈheptəɡən $ -ɡɑːn/ noun [countableC] CFa shape with seven straight sides 七边形，七角形 → polygon —heptagonal /hepˈtæɡənəl/ adjectiveadj (1500-1600) Greek heptagonos, from hepta “seven” + gonia “angle” |
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