She might cost the equivalent of 150 eggs to feed, producing an annual net gain of 150 eggs.

成本相当于150个鸡蛋的饲料，每年净收益150个鸡蛋。

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A battery chicken will lay six eggs a week. She might cost the equivalent of 150 eggs to feed, producing an annual net gain of 150 eggs.

笼养的鸡每周下6个鸡蛋，喂养它耗费的成本大约相当于150个鸡蛋的价值，每年可以净得150个鸡蛋。

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A battery chicken will lay six eggs a week. She might cost the equivalent of 150 eggs to feed, producing an annual net gain of 150 eggs.

笼养的鸡每周下6个鸡蛋，喂养它耗费的成本大约相当于150个鸡蛋的价值，每年可以净得150个鸡蛋。

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