短语是"at a discounted price"，来源是商业和购物场景中，表示物品以折扣价格出售。
例句:
You can buy this product at a discounted price during the sale season.
(在促销季，你可以以折扣价格购买这个产品。)
We are offering this service at a discounted price for a pmited time only.
(我们仅限时间内以折扣价格提供这项服务。)
You can enjoy this meal at a discounted price if you dine in before 6 PM.
(如果您在下午6点前就餐，可以以折扣价格享用这道菜。)