{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/a4a0eaa5da224f859a466d028373fb3f\" frameborder=\"0\" width=\"1920\" height=\"1440\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":1440,"width":1920,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":1440,"thumbnail_width":1920,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/a4a0eaa5da224f859a466d028373fb3f-00001.gif","duration":355,"title":"Ch15.3 直線方程 (第三部分)"}