您能告诉我他们收垃圾的时间吗？
收垃圾的人晚上是不会来的。
社区周二和周五早上收垃圾。
The community collects trash every Tuesday and Friday morning.
收垃圾是个没人感谢的工作，但总是得有人做。
Collecting garbage is a thankless job, but someone's got to do it...
该镇每周收一次垃圾。
垃圾车每周来收两次垃圾。
垃圾车每隔一个星期来收一次垃圾。
探讨应用单亲遗传算法求解城市垃圾收运路线的优化问题。
A new solution of waste collection and transportation route optimization was put forward.
介绍了乐山市城市生活垃圾收运系统及处理工程的设计情况。
This paper introduced the design of M. S. W collection system and treatment engineering in Leshan City.
介绍了乐山市城市生活垃圾收运系统及处理工程的设计情况。
This paper introduced the design of M. S. W collection system and treatment engineering in Leshan City.
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