Simplify the following text for a Grade 8 native English-speaking person.
Original: The Administrative Block comprises the Administrative Office , three Staff Rooms , HOD Rooms , Lecture Theatres , circular areas for study as well as one main circular area known as the Main Atrium .
Simplified: There is the General Office and Staff Rooms . There are also circular areas for people to study , and a big circular area called the Main Atrium for people to assemble at .