But there is no evidence to show that the structure of eyes is changed by wearing glasses at a young age.
但是没有证据表明在年轻的时候戴眼镜会改变眼睛的结构。
When a country or a region is a young or old population age structure, the share of its population rate to the total population would have an adverse effect to the consumption.
当一个国家或地区的人口为老年型人口结构时，老年型人口比重逐渐上升，增加的老年型人口比会抑制人均居民消费支出的增长。
When a country or a region is a young or old population age structure, the share of its population rate to the total population would have an adverse effect to the consumption.
当一个国家或地区的人口为老年型人口结构时，老年型人口比重逐渐上升，增加的老年型人口比会抑制人均居民消费支出的增长。
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