Dinosaurs are large reptiles that roamed the earth thousands of years ago. They mysteriously died out so no one knows for sure exactly how many kinds there were or what they looked like. Skeletons which have been found show us different kinds of teeth so scientists believe that some were meat eaters and some ate plants.
恐龙是几千年前生存在地球上的大型爬行动物。它们离奇地灭绝,没有人确切地知道究竟有多少种恐龙以及它们的模样。已发现的骸骨向我们展示多种不同类的牙齿,据此科学家认定,有些恐龙食肉而有些恐龙食草。
Paleontologists are scientists who study old fossils and bones. They have dug up pieces of dinosaur bones, cleaned them and brought them to museums to try to piece together a whole dinosaur. Since dinosaur skin was sometimes pressed into mud, which then hardened, scientists can tell what dinosaur skin looked like.
古生物学家是研究的化石和骸骨的科学家。他们挖出了恐龙骨骼碎片,清洗后把它们带回博物馆,试图拼凑出一只完整的恐龙。由于恐龙的皮肤有时被压入泥中,随后硬化,所以科学家可以辨认恐龙的皮肤。
A dinosaur skeleton put together from bones which have been dug up gives much information about what dinosaurs ate, what they looked like and how they defended themselves. The type of teeth or beak they had tells us what they might have eaten. Horns show us how a particular dinosaur defended itself.
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