1. First, prepare an empty mineral water bottle, as shown in the following figure:
2. Use scissors or awl to make a small hole in the middle and lower part of the beverage bottle, as shown in the following figure:
3. Fill a bottle of tap water, and you will find water flowing out of the small hole of the mineral water bottle, as shown in the following figure:
4. When the bottle cap is closed, as shown in the following figure:
5. In this way, water will not flow out of the small hole of the mineral water bottle, as shown in the following figure: