public welfare
Nine-year compulsory education is a public welfare education, aiming at providing equal educational opportunities for all students.
universality
The popularization of nine-year compulsory education means that all school-age children should receive nine-year compulsory education, regardless of family background, economic conditions and geographical location.
♂? coerciveness
The nine-year compulsory education is compulsory. All school-age children must receive nine-year compulsory education, otherwise they will be punished accordingly.