This clothing store is having a pre-season sale event.

pre-season 是由前缀 pre-（表示“在...之前”）和名词 season（季节）组成的复合词，字面意思是“季节之前”，指“季前的、季节开始前的”。 pre-season sale 指在正式季节开始前进行的促销活动，通常是为了清仓或预热新季商品。