Subject falls on gravel:
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Metronome
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Wheeled Supermarket Cart
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Shake the bag, throw it on the floor
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The noise of the room, ventilation inside
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Knocking, The noise of the elevator
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Passenger elevator, opening, closing doors
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Ice crack
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Chemistry, stir the liquid in a beaker
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Unscrew, twist the cap of the bicycle camera
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Laundry Dryer
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Dragging an item on a concrete floor
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Flag flapping in the wind
★★★★★