n.粪便，排泄物

The dog's excrement on the sidewalk was an unpleasant surprise for pedestrians.
人行道上狗的粪便给行人带来了不愉快的惊喜。

It is important to dispose of animal excrement properly to maintain hygiene.
正确处理动物粪便对于保持卫生十分重要。
The farmer used cow excrement as natural fertilizer for his crops.
农民用牛粪作为作物的天然肥料。
The park has installed special bins for the disposal of dog excrement.
公园里安装了专门的垃圾桶用于处理狗粪。
In some cultures, dried excrement is used as fuel due to its high energy content.
在某些文化中，干燥的粪便因其高能量含量而被用作燃料。
The veterinarian analyzed the rabbit's excrement to check for any health issues.
兽医分析了兔子的粪便以检查任何健康问题。
The presence of undigested food in her excrement indicated digestive problems.
她的粪便中有未消化的食物，表明有消化系统问题。
The researcher collected soil samples and analyzed them for traces of animal excrement to study the ecosystem.
研究人员收集了土壤样本并分析其中的动物粪便痕迹以研究生态系统。
After the heavy rain, the river was contaminated with livestock excrement from upstream farms.
大雨过后，河水被上游农场的家畜粪便污染了。
The city has implemented strict laws to penalize pet owners who do not clean up their pets' excrement in public areas.
该市已实施严格的法律，对不在公共区域清理宠物粪便的宠物主人进行处罚。