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单词	cyma
释义	cyma noun cy·​ma ˈsī-mə  1 : a projecting molding whose profile is an S-shaped curve 2 : an S-shaped curve formed by the union of a concave line and a convex line Word History Etymology Greek kyma, literally, wave First Known Use 1563, in the meaning defined at sense 1
随便看	pteralia pteralium pteranodon pteranodons pteranodont pteraspid Pteraspidae Pteraspis pterergate pteres pteretes Pteretis pteretises pteretisses pteria pteric Pterichthyodes pterid- pteridaceaes pterideous pteridia pteridine pteridines Pteridium pteridiums

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