通过观察身体动作频率的差别他们了解到，抖动的速率原来与动物身体的半径有关。
Looking at the frequency difference, they realized that the shaking speed was connected to the radius of the animal's body.
通过观察身体动作频率的差别他们了解到，抖动的速率原来与动物身体的半径有关。
Looking at the frequency difference, they realized that the shaking speed was connected to the radius of the animal's body.
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