单词 | Sinornis |
释义 | Sinornis (extremely rare) n WORD FAMILY Sinornis n sparrow-sized fossil bird of the Jurassic period to the Cretaceous period having a keeled breastbone and vestigial tail; found in China; considered possibly the second most primitive of all birds Hyper bird warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings |
随便看 |
英语词典包含147318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。