布朗大学在《当代生物学》上发表了这项关于睡眠的研究成果。

The sleep findings were reported in Current Biology by Brown University.

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我要学的太多，因此我睡眠不足。

I have to study too much so I don't get enough sleep.

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目的：睡眠-觉醒是一种生物学的昼夜节律。

Objection: Sleep-wake cycle is a kind of biological rhythm.

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目的：睡眠-觉醒是一种生物学的昼夜节律。

Objection: Sleep-wake cycle is a kind of biological rhythm.

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