Flag flapping in the wind:
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Cover open, close, Suitcase
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Beep time
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Board falls
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Bone breaking
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Removing bad words
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Umbrella pulling telescopic tube
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Throw nutshells on the floor
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Flag flaps in the wind on a ship
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Breaking wooden object, Falling
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The receptionist trolley passes by
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Wallet, purse on the floor, Throw a small bag
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Sine wave (975Hz)
★★★★★