human and animal excreta

例句：

1. 1. The city's sewage system is responsible for treating human and animal excreta.
   城市的污水处理系统负责处理人类和动物的排泄物。
2. 2.The farm has a large compost heap where animals and humans can deposit their excreta.
   农场有一个大型堆肥坑，动物和人类可以在那里排放他们的排泄物。
3. 3.The park is designed to be accessible to both humans and animals, with separate areas for each.
   公园被设计成对人和动物都开放，有分开的区域供他们使用。