The discovery and characteristics of Danxia landform by tingrui su https://padlet.com/sutingrui201/ozo6ru5nv4mewesj en-us 2024-11-01 03:07:22 UTC 2024-11-01 03:11:28 UTC hello@padlet.com https://padlet-uploads.storage.googleapis.com/2973593724/acf1885d47c985fd3339c21b6530bbdf/25.png sutingrui201 https://padlet.com/sutingrui201/ozo6ru5nv4mewesj/wish/3197140117 2024-11-01 03:09:16 UTC https://padlet.com/sutingrui201/ozo6ru5nv4mewesj/wish/3197140117