但特别是当我们回顾美国动荡的过去时，今天的社会指数很难表明一个黑暗和恶化的社会环境。
But particularly when viewed against America's turbulent past, today's social indices hardly suggest a dark and deteriorating social environment.
这一在《社会指数研究》期刊上发表的报告指出，这可能是因为年龄大的人更懂得珍惜。
The report, published in the journal Social Indicators Research, said this could be due to older people being more appreciative.
这一在《社会指数研究》期刊上发表的报告指出，这可能是因为年龄大的人更懂得珍惜。
The report, published in the journal Social Indicators Research, said this could be due to older people being more appreciative.
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