Demographers also expect strains on the household registration system, which restricts internal migration.
Demographers also expect strains on the household registration system, which restricts internal migration.
人口统计学家同时预测阻碍国内移民的户籍制度将受到压力。
Demographers also expect strains on the household registration system, which restricts internal migration.
人口统计学家同时预测阻碍国内移民的户籍制度将受到压力。