Nupur说她计划买一些新的金首饰和一个钻石手镯，看起来很奢华，其实黄金含量很低。
Nupur said she planned to buy some new gold ornaments and a diamond bracelet that looked flashy - but will have very little gold content.
在通货膨胀的20世纪70年代，黄金和白银的价格比就是16：1……这反映了两种金属在自然界含量的比率。
During the inflationary 1970's, the ratio between gold and silver prices was at exactly 16:1... mirroring the proportions in which the two metals occur in nature.
研究人员发现当把头发放在自然带有黄金而又没有细菌的土壤中培养时，它的金子的含量不会达到任何有统计学意义的水平。
The researchers found gold levels did not increase in the hair to any statistically significant degree when it was incubated without the microbes in naturally gold-laden soils.
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