@lucy you can't either because the gas in solution is essentially liquid
That being said you can kinda compress liquids, it's just that atmospheric liquids are usually at optimum compression
>the small amount of air in the top of the bottle will compress (not really liquid compression)
>very small bubbles that aren't in solution can be compressed to solution (not really liquid compression)
>a liquid can contain cavitation bubbles and those can be compressed (this is liquid compression but cavitation bubbles usually collapse by themselves very fast)
>finally, there is a very small space to be gained by putting all the free sliding molecules under pressure but it's so isignificantly small it never matters except for real complex edge cases