1、Ornithopods were a diverse group of herbivorous dinosaurs that lived during the Mesozoic Era.
鸟脚类恐龙是一类多样化的草食性恐龙，生活在中生代时期。

2、The duck-billed dinosaur, also known as Edmontosaurus, is a well-known ornithopod.
鸭嘴龙，又称埃德蒙顿龙，是一个著名的鸟脚类恐龙。