出处：按学科分类—语言、文字 中国书籍出版社《汉英政治法律分类词典》第125页（266字）
“nine squares”system(of land ownership in China’s slave society with one large square divided into 9 small ones like the Chinese character“井”，the 8 outer ones being allocated to serfs who had to cultivate the central one for the serf owner)