Groundhogs spend the winter hibernating in a specially dug hibernation burrow, their breathing and heartbeats slowed to a snail's pace.

土拨鼠在一个特别的冬眠洞穴中冬眠，它们的呼吸和心跳慢到和蜗牛差不多。

Another hibernating creature is the bear.

另一个冬眠的动物是熊。

Hibernating animals wake up from my dream.

冬眠的小动物都从梦中醒来。

Extreme cold can wake a hibernating animal.

极度的寒冷能使正在冬眠的动物苏醒。

This state is called hibernating myocardium.

这种状态叫做冬眠心肌。