落差

例句：

1. 2.
   价格、水平等
2. 1. The price of the product has dropped significantly since last year.
   该产品的价格自去年以来大幅下降。
3. 2. The company's financial performance has fallen short of expectations.
   该公司的财务状况低于预期。
4. 3. The drop in oil prices has had a significant impact on the global economy.
   油价下跌对全球经济产生了重大影响。