Eight-year-old children can understand, but they can't say what subjects they need to read, dumb.

It is necessary to take the child to see a doctor, accept the doctor's on-site inspection, evaluation and inquiry, make clear the child's diagnosis and possible reasons, and then consider relevant rehabilitation interventions.

(Dr. Yan Hua from Hunan Children's Hospital solemnly reminds me that because I can't see the patient in person, I can't fully understand the condition. The above suggestions are for reference only. Please go to the hospital for specific diagnosis and treatment under the guidance of a doctor! )