Pen writing:
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Remove eraser by hand
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Put the ballpoint pen on the table
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Write, press a button, Ballpoint pen machine
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Ink Dipping, Pen Writing
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Crunching paper rustling
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Seal, closes, pad opens
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Stamp, Plastic seal
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Stapler
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Putting on the ballpoint pen
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Click on the calculator buttons
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Chalk writing on the blackboard
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Scissors cutting paper
★★★★★