海狸鼠是由阿根廷的皮毛养殖者带来的，并被放归野外。

Nutria were brought there from Argentina by fur farmers and let go into the wild.

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鸡养殖者可供大规模生产的“完美”鸡。

Breeders' Perfect 'Chickens for Mass production.

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那里的后院养殖者和农户实在太多了，”她说。

There are simply too many backyard farmers and village households," she said.

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目前，美国放牧者正致力于恢复俄国的肉牛养殖业。

Now American ranchers are working to rebuild Russia's herd.

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目前，美国放牧者正致力于恢复俄国的肉牛养殖业。

Now American ranchers are working to rebuild Russia's herd.

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