• A gradual agricultural revolution in northern Europe stemmed from concerns over food supplies at a time of rising populations.

    北欧渐进农业革命源于人口增长时期粮食供应担忧。

    youdao

  • A gradual agricultural revolution in northern Europe stemmed from concerns over food supplies at a time of rising populations.

    北欧渐进农业革命源于人口增长时期粮食供应担忧。

    youdao

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