noun🔗Share平胸鸟, 走禽 A bird of the order of Struthioniformes, a diverse group of large running, flightless birds, mostly extinct, but including the cassowary, elephant bird, emu, kiwi, moa, ostrich, rhea and tinamou"At the zoo, we saw the ostrich and the emu, learning that these large, flightless birds are both types of ratites. "在动物园里，我们看到了鸵鸟和鸸鹋，了解到这些大型不会飞的鸟都属于平胸鸟。birdanimalbiologynatureChat with AIVocabulary GamePractice Reading
