At this point, sandstone slabs – known as 'sarsens' – were arranged into an outer crescent or ring; some were assembled into the iconic three-pieced structures called trilithons that stand tall in the centre of Stonehenge.
此时，砂岩板（称为“sarsens”）被排列成外部新月形或环形；有些被组装成标志性的三块结构，称为“三石”，高高地矗立在巨石阵的中心。
