{"type":"rich","version":"1.0","title":"21unit18第二部分","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/XMpNvceK2RK8Dl5I/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/5cca4dbdc78ad912bc0e5e48\" frameborder=\"0\" allowfullscreen></iframe>"}