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ratite

/ˈræt.aɪt/

翻译: 指一类不会飞的鸟类,其胸骨扁平,没有供飞行肌肉附着的龙骨突,包括鸵鸟、鸸鹋、几维鸟和美洲鸵等。

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noun

C2formalcommonscientific/ˈræt.aɪt/

A noun referring to a group of flightless birds with flat breastbones that lack a keel for flight muscle attachment, including ostriches, emus, kiwis, and rheas.

  • 🇨🇳指一类不会飞的鸟类,其胸骨扁平,没有供飞行肌肉附着的龙骨突,包括鸵鸟、鸸鹋、几维鸟和美洲鸵等。
  1. Flightless bird C1 formal scientific

    A group of large, flightless birds with flat breastbones that lack a keel, including ostriches, emus, rheas, cassowaries, kiwis, and extinct species like moas and elephant birds.

    • The ostrich is the largest living ratite.
    • Ratites are believed to have evolved from flying ancestors.
    • Emus and rheas are both ratites found in the Southern Hemisphere.

    🇨🇳平胸鸟

  • ratites plural form
  • ratites' possessive plural form
  • ratite's possessive singular form