Rising income inequality over the past 30 years has damaged growth rates in rich countries by limiting educational opportunities for poor children, according to research by the OECD, the group of mainly rich nations.
一项由经合组织(OECD)展开的研究显示，过去30年里，富裕国家中不断加剧的收入不均限制了贫穷儿童受教育的机会，从而拉低了这些国家的manbetx20客户端下载 增长率。
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