| 单词 | silent alarm |
| 释义 | silent alarmnounan alarm that alerts security personnel or the police without the knowledge of the intruder or criminal whose presence triggers it: The silent alarm set off a flashing light at the police station. any visual rather than audible alarm. Words nearby silent alarmSilence is golden, silencer, silene, Silenos, silent, silent alarm, silent area, silent auction, silent barter, silent butler, silent cop Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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