pillar buoy

例句：

1. 1. The pillar of the building is made of marble.
   这座建筑的柱子是用大理石做的。
2. 2. The pillars of the temple are carved with intricate designs.
   寺庙的柱子雕刻着复杂的图案。
3. 3. The pillars of the archway support the roof above.
   拱门的柱子支撑着上面的屋顶。