The difference between private rooms

It is a relatively independent space created by enclosing a closed space.

It is a private space with little external interference. For example:

Private rooms in restaurants, private rooms in Internet cafes,

KTV private rooms and hotel suites and standard rooms.

the latter

Some public places (such as theaters, teahouses, restaurants, KTV, etc. )

Special single seat, one with multiple seats. It is exclusive.