The '下沉庭院' in Chinese refers to an outdoor garden that is sunken below the ground level. It is a landscape design feature that creates a serene and secluded space within a park or garden. This design often includes steps, walkways, and sometimes water elements. The 'effect' in this context likely refers to the visual and sensory impact of such a space. In Western contexts, this concept is often associated with Japanese Zen gardens or Italian Renaissance gardens.下沉庭院的效果可以包括提供宁静的环境,增强私密性,以及创造独特的空间体验。