| 单词 | fire alarm |
| 释义 | fire alarm ˈfire aˌlarm noun [C] ► F0 a device such as a bell or siren that warns the people in a building that the building is on fire: » If the fire alarm goes off (= starts making a sound), leave the building calmly.Thesaurus+: ↑Fire service , ↑Fire and flameThesaurus+: ↑Electrical switches and connections |
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