What do you mean by 4000 regular drops of water?

Pinduoduo is the platform that most of us use to buy things now, because its price is cheaper. Pinduo has a regular water drop, that is, there are 12 drops to 40 drops at 7: 00 am, 12 drops at noon and 6: 00 pm every day, and we can collect them at this time. If we miss this time, there will be no water drops.