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EXAMPLES FROM CORPUS
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A neighbour had made sure he was awake; there was no alarm clock at home.
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I rolled over, sat up, blinked, and glared at the alarm clock .
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Lutine Bell alarm clock by Wherle Decosphere light.
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The alarm clock overhead read 5.28, time for a quick cup of tea before his new shift began.
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To give you an idea what that means, 80 decibels is generated by a typical alarm clock .
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Voice-control AB313 travel alarm clock showing world time zones, £21.95.