货币购买力下降to depreciate

货币对黄金或外币的比价下降to devalue

• 美元贬值

  fall in the value of the dollar

• 美元对黄金贬值。

  The dollar has fallen against gold.

• 货币对外贬值。

  The exchange rate has fallen.

• 货币贬值了百分之三十七。

  The value of the currency has dropped 37 percentage points.

价值降低to drop in value

• 商品贬值

  fall in commodity values

• 贬值商品

  devalued commodities