I can't. Haidilao's star stacking and college student discount are two different marketing activities, which cannot be * * *, but you can choose which discount to use according to your personal needs. Haidilao Star is a point exchange activity. You can get points when you spend in the store, and then you can exchange them for different gifts. College student discount refers to a preferential policy provided by Haidilao for college students, and you can enjoy certain discounts with your student ID card.