  This paper is dedicated to the study of the inviscid liquid-gas two-phase
flow model in $\mathbb{R}^d\ (d\geq1)$. We establish the global existence of
strong solutions to this system with small initial data in hybrid Besov spaces
based on general $L^p$-norms. Additionally, we obtain the decay estimates of
solutions rely on the constructed Lyapunov functional.
