NooneissurehowtheancientEgyptiansbuiltthepyramidsnearCa...
问题详情：NooneissurehowtheancientEgyptiansbuiltthepyramidsnearCairo.Butanewstudysuggeststheyusedalittlerock‘n’roll.Long-agobuilderscouldhaveattachedwoodenpolestothestonesandrolledthemacrossthesand,th...