on the tenth floor of the Commerce Building.
about twenty feet long and ten feet wide.
The walls are light green and the ceiling is white.
there are two painted radiators for heating the room in the winter time.
there is a brown door and next to it there is a thermostat.
There is a large blackboard.
The teacher’s desk is in front of this blackboard.
it's for the students’ coats and jackets.
There are about twenty light-colored chairs.
a flat right arm.
it is a pleasant and comfortable room.
求采納~!