The central part of the auditorium was hollowed out of a hill or slope, while the outer radian seats required structural support and solid retaining walls.

• 在观众区的中央有别一旁的山丘或斜坡,是中空凹陷的区域，而靠近外部呈弧度状的座位区需要建筑上的支撑和坚固的墙来维持。