fire alarmWiktionary 原文构词拆分fire词根/词干+alarm词根/词干词源说明From fire + alarm.释义（英文）名词 NounAn electromechanical or electronic bell, klaxon, chime, horn, speaker, strobe light or other device which warns people in a building etc. of a possible fire or other condition requiring evacuation.The sound词族派生词（4）fire alarm hornfire alarm pull stationfire alarm systempull the fire alarm