You can't pour out white wine when it is empty. You can shake the bottle to see if it is empty. If there is running water, you should be able to pour it out.
If there is wine in the bottle, but you can't pour it out, it's because you opened the bottle in the wrong way. You can see if your bottle cap is open. Some bottle caps need to be turned over twice, that is, the outer bottle cap is opened, and there is an inner cover inside, which needs to be opened. Only by opening the inner lid can you pour white wine.
Some bottle caps also have a bottle opening mechanism. You can twist the bottle cap left and right several times, and the switch on the bottle cap will push the inner cover of the bottle away or open one. A hole where you can walk, so you can pour wine.
Generally, there are many bottle caps for high-grade liquor. So you can first cupping the bottle cap and turn it left and right, and twist it a few times, so you can usually open the bottle.
Some white couples put two beads on the bottle cap. The function of these two beads is to prevent the wine from spilling and the fragrance of the wine from escaping. This bottle cap is easy to pour wine when it is full, but at the back, when there is little wine, glass beads may block the pouring hole. Just shake the bottle, the glass beads will shake and the wine will pour out.