pyramid of number

例句：

1. 1. The pyramids of Giza are one of the wonders of the world.
   吉萨的金字塔是世界七大奇迹之一。
2. 2.The pyramids were built over 4,000 years ago.
   金字塔建于4000多年前。
3. 3.The pyramids are a testament to the ancient civilization that built them.
   金字塔是古代文明建造它们的见证。