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The sheep are allowed to roam freely on this land.
绵羊可以在这片地上自由走动。
《牛津词典》
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They are usually allowed to roam freely, which contributes to the spread of the disease.
它们通常可以自由行走，这促使疫病蔓延。
youdao
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They are usually allowed to roam freely, which contributes to the spread of the disease.
它们通常可以自由行走，这促使疫病蔓延。
youdao