China's elderly are poor, sick and depressed in alarming numbers, according to the first large-scale survey of those over 60, an immense challenge for Beijing and one of the greatest long-term vulnerabilities of the Chinese economy.

　　针对中国60岁以上人口的首次大规模调查显示，中国贫穷、多病且精神抑郁的老年人数量多得惊人，这既是对中国政府的巨大挑战，也是中国经济最大的长期性弱点之一。