During the Two Sungs, trades of lands and houses are very active, especially the way of live-sale, which get a booming development in the period of Two Sungs.
两宋时期，田宅交易十分活跃，尤其是田宅的典卖交易方式在两宋时期更是得到了蓬勃发展。
2
The third section completely gathers the law concerning live-sale of lands and houses during the Two Sungs, and gives a brief evaluation of the correlative law.
第三节全面梳理了两宋关于田宅典卖的法律规范并做了简要评价；
3
Based on the research of ancient people's (take the people during Two Sungs for example) real viewpoint about live-sale, it comes out the real character of live-sale.