2. This is a children's tune sung by children, which describes the innocence of a child when singing on the number bridge. It vividly shows the babbling of young children and the rising expectations of their parents. The lyrics are full of nursery rhymes, full of nursery rhymes Its music is crisp and pleasant, the tune is simple, the beat is cheerful, the combination of chanting and singing is easy to learn and sing, and it is deeply loved by children.