{"type":"rich","version":"1.0","title":"首字母发音分类","description":"拼读与音素意识：识别并分类以 B、M、S 开头的单词的起始音。","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1780944807759&hashid=BGpqJwwgKQ","html":"<iframe src=\"https://arcade.padlet.com/embed/BGpqJwwgKQ\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}