Some cold-blooded animals sleep all through the winter.
一些冷血动物整个冬天都在睡觉。
The most recent research indicates that they were cold-blooded animals.
最近的研究表明他们是冷血动物。
There is a clear difference in bone structure between modern cold-blooded and warm-blooded animals.
现代温血动物的骨骼结构与冷血动物有着本质上的区别。
There is a clear difference in bone structure between modern cold-blooded and warm-blooded animals.
现代温血动物的骨骼结构与冷血动物有着本质上的区别。
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