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PowerPoint プレゼンテーション › intermediatetext.pdfcontrol the speed with a ball you hold in your hand Why use two wheels when you can use three? The Trikke Scooter looks

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Page 1: PowerPoint プレゼンテーション › intermediatetext.pdfcontrol the speed with a ball you hold in your hand Why use two wheels when you can use three? The Trikke Scooter looks
Page 2: PowerPoint プレゼンテーション › intermediatetext.pdfcontrol the speed with a ball you hold in your hand Why use two wheels when you can use three? The Trikke Scooter looks
Page 3: PowerPoint プレゼンテーション › intermediatetext.pdfcontrol the speed with a ball you hold in your hand Why use two wheels when you can use three? The Trikke Scooter looks
Page 4: PowerPoint プレゼンテーション › intermediatetext.pdfcontrol the speed with a ball you hold in your hand Why use two wheels when you can use three? The Trikke Scooter looks
Page 5: PowerPoint プレゼンテーション › intermediatetext.pdfcontrol the speed with a ball you hold in your hand Why use two wheels when you can use three? The Trikke Scooter looks
Page 6: PowerPoint プレゼンテーション › intermediatetext.pdfcontrol the speed with a ball you hold in your hand Why use two wheels when you can use three? The Trikke Scooter looks