What's the name of the stage background?

Commonly known as stage scenery, or stage scene. It can also be called stage background. It is divided into a curtain, usually a projection, and a set, which consists of paintings or beautiful scenery (including houses). Trees and other unconventional props are fixed to explain the scenes used in the environment. Collectively known as stage art design.

The so-called several-act drama does not refer to the change of the stage scene, but refers to the fact that props were always performed in the form of pulling the curtain in front of the stage when changing scenes. Generally, a few acts are called several acts. Hesitant to switch the diversity of forms now, and the stage performance is popular with the opening ceremony performance, so there is no curtain-raising form on the stage at present, so the modern drama is divided into several acts.

Several plays of traditional plays can also be understood as the development and transformation of several different major events.