offshore oil contamination

例句：

1. 1. The offshoreoil spill has caused significant environmental damage.
   海上石油泄漏已造成严重的环境损害。
2. 2. Thegovernment is working to prevent future offshoreoil contamination.
   政府正在努力防止未来的海上石油污染。
3. 3. The cleanup efforts havebeen hampered by the offshoreoil contamination.
   清理工作因海上石油污染而受阻。