  We adopt the quark pair creation model to investigate the light meson
emissions of several charmonium-like states. The quark pair creation model is
applied to the four-body systems, and we calculate the pion/kaon emissions of
the $X(4700)$, $Z_c(4430)$, $Y(4230)$, $Y(4360)$, $Y(4390)$ and $Y(4660)$
within the compact tetraquark assumptions. It is found that the pion/kaon decay
widths for the $X(4700)$ and $Z_c(4430)$ are relatively small, while the
partial decay widths for the resonances $Y(4230)$, $Y(4360)$, $Y(4390)$ and
$Y(4660)$ are significant. We expect that our exploration of these decay
behaviors can provide useful information for future experimental searches and
theoretical interpretations.
