detached column

例句：

1. 1. The architect designed a detached column to support the roof.
   建筑师设计了一个独立的柱子来支撑屋顶。
2. 2. The museum has several detached columns that showcase different eras of art.
   博物馆有几个独立的柱子，展示了不同时代的艺术。
3. 3. The construction crew carefully removed the detached column before moving on to the next task.
   施工队在完成下一个任务之前小心地拆除了独立的柱子。