Thousands of years ago, people seem to be quite a way a rock, they can easily carry them, but also want to cut them, their placement, they will be placed on the accurate location.

• 数千年前的人似乎对石头颇有一套办法，他们不仅能轻松地搬运它们，而且能随心所欲地切割它们，安置它们，将它们放置到准确的位置上。