To our right, off the coast, was a row of 200ft-high limestone stacks known as the Twelve Apostles.
2
一块巨大的石灰岩上雕刻着法老的脸孔。
A huge quartzite block had an engraving of a pharaoh.
3
1987年,国家地理协会的一组工作人员来在地下室封口的一块石灰石上钻孔,安装了一个录像机。
In 1987, a team from the National Geographic Society drilled a hole through one of the limestone blocks sealing the chamber from above, and inserted a video camera.