名词
中文翻译：警报时间
同义词：
['warning time', 'alerttime']
例句：
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1. The alarmclock goes off at 6:00 every morning.
闹钟每天早上六点响。
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2.We need to be on alert for anypotential threats.
我们需要警惕任何潜在的威胁。
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3. Thefire department arrived at the scene just intime to save lives.
消防队及时赶到现场，拯救了生命。