engine ash

例句：

1. 1. The oldcar's engine ash was ahazardous waste that needed to be disposed of properly.
   旧车的引擎灰烬是一种危险废物，需要妥善处理。
2. 2. The engineerinspected the engine ash for anysigns of contamination before releasing itinto the environment.
   工程师在排放之前检查了引擎灰烬是否有污染迹象。
3. 3. The companyhad to clean up the engine ashfrom the accident site, which could havebeen harmful to the environment.
   公司不得不清理事故现场的引擎灰烬，这对环境可能是有害的。