几千年前，金字塔是怎么盖的？

The pyramids are very, very old. 金字塔已经好几千岁啦。 They are made of big heavy stones. 它们是用又大又重的石头堆的。 Workers pulled stones on wooden sledges. 工人用木橇，把石头一点点拖过去。 They built long ramps up the side. 他们沿着塔身，修了长长的斜坡道。 Slowly, the stones went higher and higher. 石头就这么，一层一层越垒越高。 Thousands of workers worked on it. 好几千个工人，在一起干活。 No magic, just lots of hard work. 没有魔法，全是辛苦和力气。