large carnivorous bipedal dinosaur having enormous teeth with knifelike serrations; may have been a scavenger rather than an active predator; later Cretaceous period in North America
造句
用作名詞(n.)
One of the biggest dinosaurs was tyrannosaurus rex. 暴龍是體型最大的恐龍之一。
Tyrannosaurus Rex grew to be 40 feet long, weighed 20 tons or more. 暴龍有40英尺長，體重達到20噸以上。