What should I do if the old water cup is not used? Are you particular when you don't throw it?

1, there is no pressure, the old one will not go, and the new one will not come. There is no such thing as nostalgia now, and many times it is time to change.

You should know that the old cup is a hidden danger to your personal health after being used for a long time, so don't think it is a waste. More often, it is for your health protection.