a device that automatically gives a warning of the presence of smoke.
| 单词 | θ90556 |
| 释义 | the world > action or operation > harm or detriment > danger > warning of imminent danger or evil > [noun] > warning arousing the unwary > device for sounding alarm > of smoke (1) smoke alarm1936 a device that automatically gives a warning of the presence of smoke. |
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