桑蚕原产于中国，几百年来，中国是世界上唯一的丝绸生产国。

With the mulberry silkworm being native to China, the country was the world's sole producer of silk for many hundreds of years.

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它原产于中国，被誉为“国宝”。

It is native to China, proudly called the "national treasure".

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产于中国南部和缅甸大型黄色和黑色貂。

Large yellow and black marten of s China and Burma.

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