| 释义 |
〔tyrannosaur〕A large carnivorous dinosaur of the Upper Cretaceous Period of North America, characterized by small forelimbs and a large head.霸王龙：上白垩纪北美洲的一种大型食肉恐龙，前肢小且头大〔megalosaur〕A gigantic carnivorous dinosaur of the genusMegalosaurus of the Jurassic Period. 巨型恐龙：一种食肉恐龙巨型恐龙 属，生活于侏罗纪时期 〔allosaur〕Any of various carnivorous dinosaurs of the late Jurassic and early Cretaceous Periods, similar to but smaller than the tyrannosaur.跃龙，异龙：侏罗纪晚期和白垩纪早期任一种食肉恐龙，形似霸王龙但体型较小 |