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1. The ranch has a large pasture unit that can accommodate up to 50 head of cattle.
这个牧场有一个大型的放牧单位，可以容纳多达50头牛。
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2. The farmer used to work on his pasture unit every day, but now he spends most of his time in the city.
这位农民过去每天在放牧单位工作，但现在大部分时间都在城里度过。
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3. The pasture unit is designed to provide optimal conditions for livestock growth and health.
放牧单位旨在为牲畜提供最佳的生长和健康条件。