The global middle class is both smaller and poorer than previously thought, according to a new study, with hundreds of millions who have recently emerged from poverty in developing countries still vulnerable to falling back into it.
一項新研究發現，全球中產階級在規模和富裕程度上都不如人們此前的預期，而發展中國家近些年擺脫貧困的數億人口仍很容易再次返貧。
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