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。
It was about 4:30 PM by the cheap digital alarm clock that glowed redly in Ian's darkened bedroom.
廉价的电子钟在Ian昏暗的卧室里发出红光，已经是下午4：30了。
Alarm clock Pro looks like a classic bedside alarm clock with a digital display.
Alarm ClockPro看上去像一个经典的带数字显示的床头闹钟。
Alarm clock Pro looks like a classic bedside alarm clock with a digital display.
Alarm ClockPro看上去像一个经典的带数字显示的床头闹钟。
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