Open下沉式庭院effect drawing

Quick answer：

A下沉式庭院（sunken courtyard）is a type of courtyard design where the courtyard is lower in elevation compared to the surrounding area. The effect drawing typically showcases the layout, architectural elements, and landscaping of the courtyard. These designs often feature stepped terraces, water features, and lush greenery, creating a tranquil and private outdoor space. In an effect drawing, these elements are depicted to illustrate the aesthetic and functional aspects of the courtyard design.