名词
中文翻译：低产牛
同义词：
['low-producing cattle', 'low-yielding livestock']
例句：
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1. Thefarmers are looking for ways to increase the yield of their low-yield cattle.
农民们正在寻找提高低产牛产量的方法。
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2.Low-yield cattle are often used in agriculture as a source of protein.
低产牛通常在农业中作为蛋白质来源使用。
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3.The government has introduced policies to improve the quality and yield of low-yield cattle.
政府已经实施了政策，以提高低产牛的质量和产量。