霸王龙的典型重量约为 7,257 千克。原文摘录(英文):Tyrannosaurus rex was a fierce predator that once roamed the Earth. This legendary carnivore controlled the forested river valleys of western North America during the Late Cretaceous period, 68 million years ago, with a gigantic body, keen fangs, and jaws so powerful they could smash a vehicle.