四边形地

例句：

1. 1. The quadrangle is a large open space surrounded by buildings.
   这个四边形是一个被建筑物包围的大型开放空间。
2. 2. The architect designed the quadrangle to be visually appealing.
   建筑师设计了这个四边形，以视觉上吸引人。
3. 3. The quadrangle was used as a public square during the festival.
   在节日期间，这个四边形被用作公共广场。