pyramidal structure

例句：

1. 1.The pyramid was built by the ancient Egyptians to honor their gods.
   这座金字塔是古埃及人为了纪念他们的神而建造的。
2. 2. The pyramids are still standing today, a testament to their durability.
   这些金字塔至今仍然屹立不倒，证明了它们的坚固。
3. 3.The pyramids were used as burial chambers for the pharaohs of ancient Egypt.
   古代埃及法老的陵墓中曾使用过金字塔作为墓葬室。