n.澄清，净化，通便

The bird defecated on the car windshield.
这只鸟在汽车挡风玻璃上排便。
Regular exercise can help prevent constipation and promote defecation.
规律运动有助于防止便秘并促进排便。
The baby learned to use the potty for defecation at an early age.
这个婴儿很小就学会了用便盆排便。
The gorilla's defecation habits were studied by the primatologist.
灵长类学家研究了大猩猩的排便习性。
The compost heap is made from vegetable scraps and animal defecation.
堆肥是由蔬菜残渣和动物粪便制成的。
Some mushrooms obtain nutrients from decaying wood and animal defecation.
有些蘑菇从腐朽的木头和动物粪便中获取营养。
The farmer collected cow defecation as fertilizer for his crops.
农夫收集牛粪作为庄稼的肥料。
The smell of defecation in the outhouse was overpowering.
茅厕里的粪便气味令人难以忍受。
The scientist observed the insects' behavior around the plant's defecation.
科学家观察了昆虫围绕植物粪便的行为。
The zookeeper cleaned the elephant enclosure daily to manage their defecation.
动物园管理员每天清理大象围栏以管理它们的粪便。