单词	dinosaur
释义	dinosaurdinosaur /ˈdaɪnəˌsɔr/ ●●○ S3 noun [countable] Etymology ETYMOLOGYdinosaur Origin: 1800-1900 Greek deinos terrible + sauros lizard 1 science, biology one of many types of reptile that lived millions of years ago2something very large and old-fashioned that does not work well or effectively anymore:  The Maine dam is a dinosaur which should be removed.3informal an insulting way of describing someone who is old and does not have modern ideas:  Some of the dinosaurs of heavy metal music will be on tour this summer. [Origin: 1800–1900 Greek deinos terrible + sauros lizard]
随便看	amour amp amperage ampere ampersand amphetamine amphibian amphibious amphitheater amphoteric ample amplification amplifier amplify amplitude amply ampule amputate amputation amputee Amsterdam amu amuck amulet Amundsen, Roald

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