买卖房屋
buying and selling───购销; 买卖；购买与销售
buying───n.买进；v.购买；获得；收买（buy的ing形式）
selling───n.(Selling)人名；(英、德、瑞典)塞林；n.销售；出售；v.出售（sell的现在分词形式）
houses───n.住宅；家园；洋房（house的复数）；房子的总称
build houses───建造房屋
buying price───[物价]买价；购买价格
direct selling───直销，直接销售，直接出售；直接销售（等于directmarketing）
buying power───[经]购买力
selling online───网上销售
I spent almost all my time and energies on selling, buying and revamping my houses, which really got on my nerves.───我几乎花费了所有的时间和精力卖房、买房、装修，搞得很烦。
Buying houses for nothing and selling it after the price rises is speculative.───买了房什么也不干，等房子涨价后卖掉，这属于投机。
He obtained a large sum of money by buying and selling houses.───他通过买卖房子赚了一大笔钱。
Buying and selling houses, though, is a far slower process.───但买卖房屋却是个缓慢得多的过程。
Probe into Law Efficientiveness of Contract about Buying and Selling Houses───房屋买卖合同法律效力的探讨