They profited by buying at lower prices and selling at higher future higher prices, but their purchases and sales helped to even out commodity prices over time.
他们通过低买高卖赢利，但是他们的交易也在长期使得商品价格变得平缓。
July sales figures indicated a steep drop now that the surge in buying because of the tax credit has worked its way out of the data.
7月份房屋销售数据显示，由于税收抵免政策没有计算入数据，房屋购买量出现急剧下滑。
It is more extravagant to lie idle those expensive gears than buying them out. Therefore, used expensive goods sales are increasingly the rage as a handful of people have similar problem.
基于很多喜欢奢侈品的人群有这方面的困扰，二手奢侈品寄卖这种方式正在部分小众人群中悄然流行。
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