long sale

例句：

1. 1. The company has been selling its products online for the past five years.
   这家公司过去五年一直在线上销售产品。
2. 2. Many businesses choose to sell their products at a long sale to attract more customers.
   许多企业选择在长卖期间销售产品以吸引更多顾客。
3. 3. The long sale period is an excellent opportunity for retailers to increase their sales and profits.
   长卖期是零售商增加销售额和利润的绝佳机会。