supermarket delivery is good. The supermarket delivery staff is better, not as urgent as the delivery staff, and the time period of the supermarket delivery staff is not so long. Basically, it is the same as the working hours of the supermarket, and the delivery time is relatively fixed. The delivery staff is different, the time is not free, and they are busy when they are busy, idle when they are idle, and the online time is longer. The items are not fixed in the supermarket, especially when they are waiting for meals.