ratite /'rætait/ 📖 中文释义 a. 平胸类的n. 平胸鸟 📘 English Definition(英文释义) n. flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches; cassowaries; emus; moas; rheas; kiwis; elephant birds ← Ratitae R 字母词表 ratite bird →