| 单词 | psittacosaur |
| 释义 | psittacosaur (once / 11819311 pages) n WORD FAMILY psittacosaur n primitive dinosaur actually lacking horns and having only the beginning of a frill; long hind limbs and short forelimbs; may have been bipedal Syn|Hyper psittacosaurus ceratopsian, horned dinosaur any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia |
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