archaeopteryx
archaeopteryx [ˌɑːkɪˈɒptərɪks] noun the oldest known fossil bird, of the late Jurassic period. It had feathers, wings, and hollow bones like a bird, but teeth, a bony tail, and legs like a small coelurosaur dinosaur 始祖鸟 Archaeopteryx lithographica, subclass Archaeornithes 拉丁名Archaeopteryx lithographica,晰尾亚纲 语源 from archaeo- 'ancient' + Greek pterux 'wing'
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acknowledge vt.承认,鸣谢,对…打招呼,告知已收到
acknowledged adj.公认的
v.承认( acknowledge的过去式和过去分词 ),鸣谢,对…打招呼,告知已收到
acknowledgedly adv.公认地
acknowledgement n.承认,确认,致谢,鸣谢,收条,[法]承认书
acknowledgment n.承认,承认书,感谢
acl abbr.actual 现实的,实际的,air-cushion landing 气垫船,allowable cabin load 机载限额
aclinic adj.无倾角的,水平的
acls abbr.air-cushion landing system 气垫登陆系统,automatic carrier landing system 自动航母降落系统
aclu abbr.American Civil Liberties Union 美国公民自由协会
acme n.最高点,顶点,极点,极盛时期
acmeist n.阿克梅派诗人
acmesthesia n.尖锐感觉,针刺感觉
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