1. About "obligation", Xinhua Dictionary explains it like this: 1. Due responsibility. 2. Free labor. On this basis, I understand that "compulsory education" should belong to the government's "due responsibility" and "unpaid labor". In other words, real compulsory education should be completely free. A completely free education is not a fantasy. Some countries have implemented this completely free education. In countries where education is completely free, not only do they not charge any fees (such as tuition, miscellaneous fees and books), but they also provide free school buses and uniforms, as well as free school meals, free hiking and sightseeing activities.

2. Compulsory education, literally, is usually understood by citizens as free education; Compulsory education actually has another meaning: compulsory education, in other words, children of this age must receive nine-year education prescribed by the state. What we are implementing is the meaning at this level. Compulsory education with dual meanings is still a beautiful blueprint for big countries and poor countries.