定价

例句：

1. 1. The cost of the new car is $30,000.
   这辆新车的价格是3万美元。
2. 2. The price of vegetables has increased due to the drought.
   由于干旱，蔬菜的价格已经上涨了。
3. 3. The price of oil has been dropping recently.
   最近油价一直在下降。