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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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。

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Alarm clock Pro looks like a classic bedside alarm clock with a digital display.

Alarm Clock Pro看上去像一个经典的带数字显示的床头闹钟。

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Revelations waited for them like all the silent seconds on a digital alarm clock before the shrieking starts or else like a land mine.

NPR: Excerpt: 'Estrellas y Rascacielos'

It has been suggested that the smartphone could possibly render alarm clocks and point-and-shoot digital cameras obsolete, as people use the alarm clock functions on their phones more frequently and the cameras in these devices continue to improve.

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