In fact, gold has tripled in value over the last seven years, outperforming the S&P 500 for this same period of time.

事实上，在过去的七年里，黄金价格已经增长了三倍，远超同期水平的s&p 500指数。

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For that same reason, investors also buy gold when they think the value of the U. S. dollar is going to decline.

出于同样的原因，当投资者认为美元将贬值时也会购买黄金。

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Products not only has the permanent value just like the gold, but also the good choice for appreciation, collecting and gifting. At the same time, they play the role of beautifying home decoration.

产品不仅具有黄金的保值性，更是艺术鉴赏、收藏、馈赠的佳品，同时对家居装饰起到美化、陶冶的作用。

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In the United States in the early eighteen hundreds, fifteen ounces of silver had the same value as one ounce of gold.

VOA: special.2010.06.17

Since the face value of both certificates were the same for the same denomination, as the price gold rose, the ratio of the face value of the Silver Certificate to the market value of silver dropped.

FORBES: A Gold Standard Is Big Oil's Best Defense Against Political Attack

The gold standard, where a dollar is defined by a weight unit of gold, will enable people to use the same currency at a secured value.

FORBES: The Legislative Beginnings Of A Modern Gold Standard