Click on the calculator buttons:
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Pressing a button on a ballpoint pen (on a
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Pencil writing on paper
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Put ballpoint pen on paper
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Ink Dipping, Pen Writing
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Put the ballpoint pen on the table
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Crunching paper rustling
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Chalk writing on the blackboard
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Tear off tape
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Tape over carton, Tape holder
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Throw a pencil
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Scripture with ballpoint pen
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Pad opens, Seal, closes
★★★★★