v.除去污物；排便；澄清；净清
They also gave fishermen containers in which to defecate and urinate. 他们也提供盛装粪便和尿液的容器给渔民。
The fleas will defecate on the person as they feed on their blood. 跳蚤还会在此人身上排便，因为它们就是以人血为食的。
