1.Stonehenge was presumed to post-date these structures.
人们认为史前巨石柱要晚于这些结构。
2.Bringing a sarsen stone to Stonehenge requires years of planning.
岩石带到巨石阵是需要常年的计划的.
3.Consisting of concentric circles of stone surrounded by a moat (called a "henge"), Stonehenge was constructed in several stages over thousands of years.
由石壕沟包围几圈巨大的同心石块组成,巨石阵的建造持续了数千年时间。
4.Another form is the menhir, a simple upright stone usually placed with others to form a circle, as at Stonehenge and Avebury in England, or a straight alignment, as at Carnac in France.