问题描述：
英文课的预习.关于恐龙及一些英英解释（英文单词用英文句子来解释）
请用英文一两句话,容易被就行,来说明一下下列恐龙.
1.食肉的 2.食草的 3.飞行的 4.陆生的
用英文句子来说说一说他们的特征.不是来翻译（不准吵牛津英语书上的）
并且英英解释下列单词.
1.encyclopaedia百科全书 2.dinosaur恐龙 3.harmless无害的 4.harmful有害的 5.skeleton骨骼,骨架 6.footprint脚印,足迹
最好去权威一点的解释,最好不要自己翻.
问题解答：
我来补答
1、encyclopaedia:a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty
2、dinosaur:any of numerous extinct terrestrial reptiles of the Mesozoic era
3、harmless:not causing or capable of causing harm
4、skeleton:the hard structure (bones and cartilages) that provides a frame for the body of an animal
5、footprint:a trace suggesting that something was once present or felt or otherwise important
肉食性恐龙：Carnivorous dinosaur are a group of aggressive reptiles that has strong hind legs and heavy head. They feed on meats from other dinosaurs and becausd that they were overweighted,they moved not as quickly as other species of dinosaus did.
植食性恐龙：With long neck and tail, titanosauridaes are very heavy and enormous. They were feed on grass,leaves and bushes.
飞行恐龙：Flying dinosaurs were the ancestors of birds and they were the first kind of animals that has wings covered with feather.
陆生恐龙：Land dinosaurs family had the largest amount of member and were usually enormous in shapes. Most of them were good at running and they lived around the world.
