petroleum origin

例句：

1. 1. The oil spill has caused significant environmental damage.
   油泄漏造成了严重的环境破坏。
2. 2.The refinery processes millions of barrels of oil every day.
   炼油厂每天处理数百万桶石油。
3. 3. Crude oil is extracted from the ground and refined into various products.
   原油从地下提取，经过提炼变成各种产品。