这个短语的字面解释是“赢了这一天”。这是什么意思呢？请看对话：

    A: Have they come up with a solution to the parking fee dispute?

    B: After some considerable hassle and negotiations, the supermarket finally relented and agreed to cut the parking fees.

    A: So the customers win the day.

    B: Of course. The buyers have the final say. The supermarket cannot sit still if its customers all go to shop at its competitor’s stores.

    Note: “To win the day” means to “achieve complete success.” It roughly means to “win at the end of day” or “win in the end.” For example: New products grab headlines, but useful products that give good value often win the day.