在走动的时候，他的血液保持了身体各个部位的温度。

While he was walking, his blood had kept all parts of his body warm.

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这是因为鼻腔里的血管将温度较低的血液送到了脑部。

This was because vessels in the nasal cavity sent cool blood to the brain.

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这是因为鼻腔里的血管将温度较低的血液送到了脑部。

This was because vessels in the nasal cavity sent cool blood to the brain.

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