It was a large, airy place, with a little spring and a pool of clear water, overhung with ferns. The floor was sand.

• 洞里非常宽敞，通风顺畅，一个小泉眼流淌出的清水汇集成了一个清澈见底的水池，池子周围长着羊齿类植物，地上是沙子。