铂金为什么跌跌不休：

中文段落：

铂金，这种稀有且珍贵的金属，近年来却陷入了跌跌不休的困境。为何会出现这样的情况呢？

首先，供需关系的失衡是导致铂金价格下跌的主要原因之一。随着科技的发展，一些新的材料逐渐替代了铂金在部分领域的应用，使得铂金的需求量减少。同时，铂金的开采成本较高，资源相对有限，但近年来供应却有所增加，导致供需关系失衡，价格下滑。

其次，全球经济形势的变化也对铂金价格产生了影响。在经济低迷时期，消费者的购买力下降，对奢侈品的需求减少，这也间接影响了铂金的市场需求。此外，国际贸易摩擦、地缘政治紧张等因素也可能导致资金流出铂金市场，进一步压低价格。

最后，投资者的投资选择也是影响铂金价格的重要因素。随着金融市场的不断创新，投资者有了更多的投资选择。当其他投资品种表现较好时，资金可能会从铂金市场流出，导致铂金价格下跌。

英文段落：

Platinum, a rare and precious metal, has found itself in a constant state of decline in recent years. Why has this happened?

Firstly, the imbalance between supply and demand is one of the main reasons for the decline in platinum prices. With the advancement of technology, some new materials have gradually replaced platinum in certain applications, reducing its demand. At the same time, platinum mining is costly and resources are relatively limited, but supply has increased in recent years, leading to an imbalance in supply and demand and a subsequent drop in prices.

Secondly, changes in the global economic situation have also affected platinum prices. During economic downturns, consumers' purchasing power decreases, and demand for luxury goods decreases, indirectly affecting the market demand for platinum. Additionally, international trade frictions, geopolitical tensions, and other factors may lead to capital outflows from the platinum market, further depressing prices.

Finally, investors' choices of investments are also significant factors influencing platinum prices. With the continuous innovation of financial markets, investors have more investment options. When other investment varieties perform well, funds may flow out of the platinum market, leading to a decline in platinum prices.