单词	Aves
释义	Aves /ˈeɪviːz / /ˈɑːveɪz/ plural noun Zoology A class of vertebrates which comprises the birds.Let's investigate the origin and evolution of flight in our representative taxa: the Pterosauria, Aves, and Chiroptera (bats).... Hence, the possession of feathers is unique to birds and defines all members of the class Aves. Now that is fine, but if you want a pretty strong line of evidence to show that birds came from theropods, then add a lot of theropods to the class Aves. Origin Latin, plural of avis 'bird'.
随便看	brittle brittle bone disease brittlebush brittle fracture brittle heart brittlely brittleness brittle silver ore brittlestar brittlewort brittling brittlish brittly Brittonic britzka britzska Brixit Brix scale BRL BRN Brno bro broach broach spire broad

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。