Ice crushing:
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The flag flaps in the wind, beats fastening
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Tinder brush surface
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Male voice, Warning system, numerical
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The noise of the room, ventilation inside
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Opening, Freight elevator, closing doors,
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Escalator
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Metronome
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Bone breaking
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Wooden whistle
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Digital beep
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Beep, account notification tone
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Energy surge, surge
★★★★★