防災スピーカー
Schlüsselwörter
loudspeaker,
announcement,
coverage,
evacuation,
megaphone,
megaphone,
disaster,
sky,
natural disaster,
quake,
communication,
emergency,
disaster,
alert,
crashing waves,
drill,
overcast,
attention,
typhoon,
flooding,
open air,
buzzer,
copy space,
metal,
tone,
technology,
system,
equipment,
announcement,
sow
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