protopyramid

例句：

1. 1. The ancient Egyptians built manyprotopyramids during their reign.
   古埃及人在他们的时期建造了许多原初金字塔。
2. 2. The discovery of this protopyramid has sparked a new interestin the history of ancient Egypt.
   这个原初金字塔的发现激发了人们对古埃及历史的兴趣。
3. 3. The protopyramid is considered to be one of theearliest examples of architecture in the world.
   原初金字塔被认为是世界上最早的建筑之一。