Vocational education in counties is essential to intensifying the accumulation and improvement of rural human capital and enhancing the supply of educational resources. 

For many years the shortage of rural teachers, low personnel stability, and other problems have restricted the improvement of rural education. 

Quality and balanced development in education is the foundation and core task of achieving common prosperity.

Study of the laws of children's language acquisition will not only help parents and preschool teachers better plan language education, but also assist pediatricians, language pathologists, and special-education teachers in early language consultation and rehabilitation.