flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches; cassowaries; emus; moas; rheas; kiwis; elephant birds
双语例句
1. South American game bird resembling a gallinaceous bird but related to the ratite birds.
南美体重翼小的猎鸟，形似鹌鹑但与平胸鸟有亲缘。
youdao
2. South American game bird resembling a gallinaceous bird but related to the ratite birds.
