{"type":"rich","version":"1.0","title":"單位換算挑戰","description":"單位換算：配對等值的長度測量單位，例如英尺、英吋、碼、公尺、公分、公里和英里。","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1781044081436&hashid=ZMjgRB7Qr7","html":"<iframe src=\"https://arcade.padlet.com/embed/ZMjgRB7Qr7\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}