How can I unscrew the bottle cap of mineral water?

It is because I am alone that I can't open it. Wow ~ Answer: Hey ~ ~ This question is really a bit difficult. Ordinary people can open it with a little effort. I don't know why you can't open it. Then change a bottle of mineral water and ask the boss to open it for you when you buy it: Oh, my God. It's no use changing it. I didn't unscrew all the bottled water. All of them. I have never unscrewed it once in my life. . . I can't open it with all my strength. . Once I was so tired that I lost my temper and didn't even open it. I have no choice but to bite with my teeth ... but I am so embarrassed when there are many people in the street ~ ~ so I want to find a simple and open method ~ Answer: I really wonder why I can't open it. Your hands are weak? Sailors sweat every time they twist a mineral spring? Every time it's backwards? Let the boss unscrew it for you when you buy it in the future.