This is the 6197th most frequent Chinese word.
店內
"店內" means "inside the store."
Here, "店內" specifies the location within the store where the described activity (presence of customers) is observed.
店內有許多顧客。
There are many customers inside the store.
In this sentence, "店內" identifies the place where the decoration is noted, indicating the interior space of the store.
店內的裝潢很精緻。
The decor inside the store is very exquisite.
"店內" is used here to denote the specific place within the store where dining is possible.