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
例句
用作名词(n.)
One of the biggest dinosaurs was tyrannosaurus rex.暴龙是体型最大的恐龙之一。
Tyrannosaurus Rex grew to be 40 feet long, weighed 20 tons or more.暴龙有40英尺长，体重达到20吨以上。
