Studies show that even the tiny light from a digital alarm clock can disrupt a sleep cycle .

有研究显示，即便电子闹钟传来的微弱亮光都能打乱一次睡眠周期。

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Studies show that even the tiny light from a digital alarm clock can disrupt a sleep cycle .

有研究显示，即便电子闹钟传来的微弱亮光都能打乱一次睡眠周期。

youdao