Inadequate disposal of human excreta is a major health risk in emergency situations.
在紧急情况下，人类排泄物的不适当处置是一个主要的健康危害。
Waste water may carry germs which are collected from human and animal excreta.
污水里往往有人和动物粪便中的病菌。
Waste water may carry germs which are collected from human and animal excreta.
污水里往往有人和动物粪便中的病菌。
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