'Ornithomimidae'是拉丁语，翻译为“鸟脚类恐龙”。它是一类生活于白垩纪的恐龙，身材高大，奔跑速度快，前肢极度退化，后肢长而细长，与现代鸟类相似。以下是9个含有这个词语的例句：
1. Ornithomimidae are a family of theropod dinosaurs that were mainly herbivorous.（“Ornithomimidae”是一类主要以草食为主的兽脚类恐龙。）
2. The Ornithomimidae dinosaurs were among the fastest and most agile dinosaurs.（鸟脚类恐龙是最快和最敏捷的恐龙之一。）
3. Many Ornithomimidae had long, slender legs and long tails.（许多鸟脚类恐龙有长而细长的腿和尾巴。）
4. The Ornithomimidae are believed to have lived in herds. （认为鸟脚类恐龙是成群生活的。）
5. Some Ornithomimidae had feathers covering their bodies.（一些鸟脚类恐龙身上长有羽毛。）
6. Ornithomimidae are thought to have evolved from small, carnivorous theropods.（认为鸟脚类恐龙是从小型食肉兽脚类恐龙进化而来的。）
7. The Ornithomimidae were first discovered in North America in the late 19th century.（鸟脚类恐龙最初是在19世纪后期在北美发现的。）
8. The Ornithomimidae were closely related to other dinosaurs like the Tyrannosauridae and the Dromaeosauridae.（鸟脚类恐龙与暴龙科和迅猛龙科等恐龙有密切的亲缘关系。）
9. Ornithomimidae are now extinct and only exist in the fossil record.（鸟脚类恐龙已经灭绝，只存在于化石记录中。）
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