As the transit of breeding industry to scaled、intensived and specialized. Abundant dejection of domestic animals stack in the open air unbendingly. This not only pollute environment、spread diseases、influence the quality of livestock products and the health of people's body and mind but also restrict the sustainable development of stockbreeding.
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soil-spread diseases 土传病害
Flies Spread Diseases 苍蝇传播疾病
prevent the spread of diseases 避免疾病传播
diseases spread by mosquitoes 蚊子传播的疾病
spread of infectious diseases 传染病的传播
Some animals steal our food at night, damage our furniture and spread diseases.
有些动物晚上偷我们食物,毁坏我们的家具,并传播病菌。
Mosquitoes and flies are harmful insects. They spread diseases and threaten out health.
孩子和苍蝇是害虫。它们散播病菌,威胁我们的健康。
Mosquitoes also carry dengue fever. The insects can survive in new and different environments. They can spread diseases to new areas.
蚊子也会携带凳革热症,这些昆虫能够存活在各种不同的新环境中,他们也能疾病传播到长各地。
They can spread diseases to new areas.
VOA: special.2009.05.26
The problem with it is that you also can spread other diseases in that way.
这个方法的问题是,其它疾病也会通过这种方式来传播
How diseases spread, how they can be treated or cured, when they kill somebody.
病情如何蔓延,应该怎样治疗或治愈疾病,它们什么时候会置人于死地
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