黄金为什么大跌？这个问题的答案可以从多个方面进行解释。以下是对这个问题的解析以及英文翻译对照：

首先，黄金价格的波动受到全球经济形势的影响。当全球经济出现衰退或增长放缓时，投资者会选择将资金投入到黄金等避险资产中，从而推高黄金价格。然而，当全球经济复苏或增长加速时，投资者会减少对避险资产的投资，转向其他高收益资产，导致黄金价格下跌。英文翻译为: Why has gold fallen? The answer to this question can be explained from multiple perspectives. The following is an analysis of this question with English translation:

Firstly, the price fluctuations of gold are influenced by the global economic situation. When the global economy experiences a recession or slowdown in growth, investors tend to invest their funds in safe-haven assets such as gold, thereby driving up the price of gold. However, when the global economy recovers or growth accelerates, investors reduce their investment in safe-haven assets and turn to other high-yielding assets, leading to a decline in the price of gold.

其次，美元汇率也对黄金价格产生影响。当美元汇率上涨时，以美元计价的黄金价格相对较低，因此投资者更倾向于购买美元而不是黄金，导致黄金价格下跌。相反，当美元汇率下跌时，以美元计价的黄金价格相对较高，投资者更倾向于购买黄金而不是美元，从而推高黄金价格。英文翻译为: Secondly, the US dollar exchange rate also has an impact on the price of gold. When the US dollar exchange rate rises, the price of gold denominated in US dollars becomes relatively lower, so investors tend to purchase US dollars rather than gold, leading to a decline in the price of gold. Conversely, when the US dollar exchange rate falls, the price of gold denominated in US dollars becomes relatively higher, and investors tend to purchase gold rather than US dollars, thereby driving up the price of gold.