社会纵向流动 upwards social mobility
Upwards social mobility has started to stall, according to the research result.
研究结果显示，社会纵向流动已经开始停滞。
Encouraging people to start their own businesses may improve upwards social mobility.
鼓励人们创业可以促进社会纵向流动。
（编辑:T-win）
（编辑:T-win）
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