petropols

例句：

1. 1. The petropolis is the capital of the country.
   石油城是国家的首都。
2. 2. The petropolis has a rich history and culture.
   石油城有着丰富的历史和文化。
3. 3. The petropolis economy is highly dependent on oil exports.
   石油城经济高度依赖石油出口。