Why is wool on sheep? It's just for you, how do you decide what you need to do! If it is handled directly, it may be a buyout period. If you go there often, I recommend getting a card! Take group buying as an example. The group buying activities launched by many merchants may be relatively short-term, that is, you already know the time limit before buying, that is, you can expect whether you can go at this time. If you go less, recommend group buying!