Ducks are birds that feed and breed in areas where there is a lot of water, but their habitats have been shrinking in recent decades because of the droughts.
鸭子是在有大量水的地方觅食和繁殖的鸟类，但近几十年来，由于干旱，它们的栖息地一直在缩小。
Many scientists and experts warn that rampant use of antibiotics in animal feed, like penicillin and tetracycline, will breed an epidemic that medicine has no defense against.
许多科学家和专家警告说，在动物饲料中滥用抗生素，如青霉素、四环素，会滋生流行病，而这种流行病是没有医药可以防御的。
The studies of stored product mites are closely related to grain and food storage, food hygiene, human health, livestock breed, feed industry, medicine and drug storage.
其研究内容与粮食和食品的储藏、食品卫生、人类健康、家畜养殖、饲料工业、成药和药材的储藏，有着密切的关系。
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