domestic oil

例句：

1. 1. The country's domestic oil production has been declining in recent years.
   该国近年来国内石油产量一直在下降。
2. 2.Domestic oil prices have risen due to increased demand.
   由于需求增加，国内油价上涨了。
3. 3. The government is considering increasing domestic oil taxes to combat pollution.
   政府正在考虑提高国内石油税以应对污染问题。