美国各农场中幽禁着2亿8千只母鸡，这些鸡笼小到母鸡连翅膀都伸不开。科学研究证实了这养的笼子会给母鸡带来痛苦。
U. s. factory farms confine about 280 million hens in cages so small, they can't even spread their wings. Extensive scientific research confirms this causes suffering.
美国各农场中幽禁着2亿8千只母鸡，这些鸡笼小到母鸡连翅膀都伸不开。科学研究证实了这养的笼子会给母鸡带来痛苦。
U. s. factory farms confine about 280 million hens in cages so small, they can't even spread their wings. Extensive scientific research confirms this causes suffering.
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