social mobility

• 社会流动性

social mobility的用法和样例：

例句

1. This expansion of education has not brought about a similar increase in social mobility.
   教育的扩张并未在社会流动性方面引起相似的增长。
2. These obstacles have indeed suppressed productivity, incomes and social mobility in the countryside, and contributed to the widening gap between town and country.
   这一制度极大地抑制了农村的生产力，收入和社会流动性的发展，进一步扩大了城乡差距。