动词是sell，中文意思是v. 出让，转让；出售，售卖；以……价钱出售；促销，推销；有销路；说服，使接受；<古> 出卖，做交易；<古> 欺骗；用以销售（一定数量）

With the expansion of cities, many people sell off their old houses in the countryside and move into new flats in cities.

随着城市扩张，许多人低价出售他们在农村的旧房子，然后搬进城市里的新公寓。