waste material

• 任何在过程或活动后被丢弃、不再需要或不再适用的物质或材料，通常需要处理或回收。

Any substance or material that is discarded, unwanted, or no longer useful after a process or activity, often requiring disposal or recycling.

1. Unwanted or unusable substancesB1formal

   Any material that is discarded after its primary use, or is considered worthless, defective, or of no use.

   废弃物

   • The factory disposes of its waste material in a special treatment plant.
   • Recycling programs help reduce the amount of waste material in landfills.
   • Hazardous waste material must be handled with extreme care.

2. Byproduct of a processB2formal

   Material that is left over from a manufacturing or biological process and has no further value in that context.

   废料

   • The chemical reaction produced a toxic waste material.
   • Sawdust is a common waste material in woodworking.
   • The body eliminates waste material through the digestive system.