double pricing

例句：

1. 1. The company isaccused of double pricing its products.
   该公司被指控对其产品进行双重定价。
2. 2. The governmenthas introduced a new law to prevent doublepricing in the market.
   政府已经引入了一项新法律，以防止市场上的双重定价。
3. 3.The customer was surprised to find that theprice had doubled without any notice.
   顾客惊讶地发现，价格在没有任何通知的情况下就翻倍了。