Secondly, they devised the narrow-strip, three-field farming system which continued to the 18th century.
Secondly, they devised the narrow-strip, three-field farming system which continued to the 18th century.
其次，他们设计的窄条三圃田农耕制延用至18世纪。
Secondly, they devised the narrow-strip, three-field farming system which continued to the 18th century.
其次，他们设计的窄条三圃田农耕制延用至18世纪。