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科普动画片：为什么丹顶鹤总是单脚站立睡觉？原来是为了逃命！
猫小帅和小猴看到单脚站立的丹顶鹤，感到十分好奇，为什么丹顶鹤总是单脚站立呢？你知道答案吗？一起来看看这个丹顶鹤科普视频《为什么丹顶鹤总是单脚站立》吧~更多动物科普动画片，欢迎关注猫小帅
猫小帅十万个为什么18/100
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