free garbage

例句：

1. 1.The city has implemented a program to collect and recycle free garbage.
   这个城市实施了一个收集和回收免费垃圾的项目。
2. 2. The trash collectors are working hard to keep the streets clean.
   垃圾收集者正在努力保持街道清洁。
3. 3.Free garbage disposal is becoming a major environmental issue in many cities.
   在许多城市，免费垃圾处理已成为一个重要的环境问题。