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In the course of millennia the dinosaurs died out. 在几千年的时间里，恐龙逐渐死绝了。
Why the Dinosaurs Died Out 恐龙为什么灭绝了
The dinosaurs died out roughly 65 million years ago. 大约在 6 500 万年前恐龙灭绝了。
If this line represents the age of the earth, then the dinosaurs died out here. 如果这条线代表地球的年龄，那么恐龙就是在这里灭亡的。
No one have come up with a convincing explanation of why dinosaur die out. 尚未有人能对恐龙的灭绝作出一个令人信服的解释。
How did the dinosaurs die out? 恐龙是怎么灭绝的?
In the course of millennia the dinosaurs died out 在几千年的时间里，恐龙逐渐死绝了。
Dinosaurs died out millions of years ago. 恐龙是数百万年前灭绝的.
The dinosaurs were the reptiles that inhibited the Earth before the appearance of man and died out. 恐龙是爬行动物,在人类出现以前生活在地球上,现在已经灭绝了。
In Dinosaurs: Return to Life, learn why the dream of recreating the dinosaur genome is coming closer to reality. 本片将揭示为何再造恐龙的梦想很快将成真。
Scholarly debate over how the dinosaurs died is fierce and the theory put forward by Toon and others adds one more twist to the greatest forensic mystery of all time. 关于恐龙如何灭绝的学术讨论很激烈，图恩等人提出的理论给这个一直以来争议最大的谜团又增添了一分曲折。
During the extinction of the dinosaurs, crocodiles and turtles were around, but they survived, even to this day, while the dinosaurs, the pterosaurs, the marine reptiles and others died out. 在恐龙灭绝的时候,鳄鱼和海龟也是同一时期的,但它们存活了下来,甚至存活到今天,但恐龙,翼龙,海洋爬虫类和其他物种全都灭绝了。
The detective tried to dope out why the man was murdered. 侦探们试图搞清那人被害的原因。
She knows why the metal is the good conductor. 她知道金属为什么是好的导体。
The dinosaurs disappeared long ago. 恐龙很久以前就绝种了。
Why did the dinosaur cross the road? 为什么恐龙横穿马路?
The etymological meaning of the word has long died out. 这个词早已失去了它原来的意思。
Nobody knew why the attendance had dropped away in recent months. 没有人知道为什么近几个月来出席人数越来越少。
That is why the machine parts were wearing away during use. 那就是机器零件在使用过程中磨损的原因。
The moth's habitat is being destroyed and it has nearly died out. 这种蛾子因栖息地正受到破坏，几乎绝种了。