An upper section, often with a sloping floor, projecting from the rear or side walls of a theater or an auditorium to provide additional seating.是什么意思_An upper section, often with a sloping floor, projecting from the rear or side walls of a theater or an auditorium to provide additional seating.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句