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- Dinosaurs are extinct animals. 恐龙是已经绝种的动物。
- Because dinosaurs are extinct the scientists had very little to go on. 因为恐龙已经灭绝，科学家几乎无法研究。
- Dinosaurs have been extinct for millions of years. 恐龙已绝种几百万年了。
- The Coelacanth is a fish that was thought to be extinct with the dinosaurs. 腔棘鱼是一种被认为和恐龙一起灭绝了的鱼类。
- Remains of dinosaurs are found all over the world. 世界各地都发现了恐龙化石。
- Some of the species of birds are extinct. 有几种鸟类已经绝种了。
- My hope of getting some employment was extinct. 我要找到工作的希望落空了。
- Dinosaurs were a very long-lived and diverse group of animals. 恐龙是一个经历了漫长的年代而且有着很多分支的种群。
- This species will be extinct in a few decades. 几十年后这个物种将会灭绝。
- Scientists are attempting to compare features of extinct animals with living analogues. 科学家正试图把已灭绝动物的特征与现存类似动物的相比较。
- His movie of the extinction of dinosaurs was a great success. 他的关于恐龙灭绝的电影取得了巨大的成功。
- A research indicates that dinosaurs were warm-blooded animals. 一项研究表明恐龙是热血动物。
- Certain rare wild animals that are going to be extinct should be collected, fed and reproduced artificially. 有些濒临灭绝的珍稀野生动物应该被收捕、人工喂养及繁殖。
- Secondly, certain rare wild animals that are going to be extinct should be collected, and reproduced artificially. 其次，有些濒临灭绝的珍稀野生动物应该收捕、人工喂养并繁殖。
- The dinosaurs and numerous other reptiles which had previously been dominant were extinct. 先前曾占主位的恐龙以及许多其他爬行动物到了这时都绝灭了。
- The name of one kind of dinosaurs was iguanodon. 其中有一种叫做禽龙。
- The cahow was thought to be extinct for centuries. 百慕大圆尾鹱被认为灭绝已经几个世纪了。
- One of the biggest dinosaurs was tyrannosaurus rex. 暴龙是体型最大的恐龙之一。
- The name of our family will be extinct on your becoming an ascetic. 我们家庭的名字会因为你成为一名苦行者而湮灭。
- These dinosaurs were not suffocating in a museum. 这些可不是博物馆里死气沉沉的恐龙。
