它们都有一条长长的尾巴，帮助松鼠在从一棵树跳到另一棵树时保持平衡，还有同样的大眼睛、小耳朵和有力的后腿。
They both have a long tail, which helps the squirrel to balance when jumping from tree to tree, and the same large eyes, small ears and powerful back legs.
研究证明松鼠能够以摇尾巴的方式吓退蛇。
The research proved that squirrels are able to scare away snakes by wagging (摇动) their tails.
小松鼠的尾巴不停地摇着。
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