Some dinosaurs had only rudimentary teeth.
有些恐龙只有未充分长成的牙齿。
The mania for dinosaurs began in the late 1800s.
恐龙热兴起于19世纪晚期。
Eighty million years ago, dinosaurs ruled the earth.
八千万年前，地球是恐龙的天下。
Birds are widely believed to have evolved from dinosaurs.
鸟类普遍被认为是从恐龙进化而来的。
Recent, more dramatic use of CGI was seen in "Walking With Dinosaurs."
最近，在“与恐龙同行”中能看到更多令人印象深刻的计算机显示影像的应用。
以前有会飞的恐龙吗？
Why don't dinosaurs ever forget?
为什么恐龙从来不忘事？
恐龙看起来像什么呢？
How do dinosaurs say good night?
恐龙怎么说晚安？
What do we know about dinosaurs?
关于恐龙，我们知道些什么？
现代鸟类是恐龙。
他为什么喜欢恐龙呢？
There were millions of dinosaurs.
这曾有几百万只恐龙。
在这儿我们能看见恐龙吗？
一些恐龙有角。
这里以前没有恐龙。
那是有关恐龙的。
女孩子们喜欢恐龙吗？
恐龙吃什么呢？
How many dinosaurs are eating apples?
多少只恐龙正在吃苹果？
Some dinosaurs are as big as buildings.
一些恐龙像建筑物一样大。
And some dinosaurs ate other dinosaurs!
还有一些恐龙吃其他恐龙！
Some dinosaurs are bigger than elephants.
有些恐龙比大象还大。
They were skeletons of dinosaurs inhabiting the locality.
它们是当地恐龙的骨架。
So did female dinosaurs of the kinds that were investigated.
曾被研究过的雌性恐龙也是这样的。
So we are curious about the type of care dinosaurs gave to their young.
所以我们很好奇恐龙是如何照顾它们的后代的。
The disappearance of dinosaurs is not necessarily caused by astronomical incidents.
恐龙的消失并不一定是由天文事件引起的。
There are no dinosaurs alive today, but models of dinosaurs can be seen in the museum.
当今已经没有恐龙生存了，但是我们可以在博物馆看到恐龙模型。
Biologists generally agree that birds and dinosaurs are somehow related to one another.
生物学家普遍认为鸟类和恐龙在某种程度上是有联系的。
Perhaps dinosaurs could not tolerate these extreme temperature changes and became extinct.
也许恐龙无法忍受这些极端的温度变化于是灭绝了。
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