cavern water cushion

例句：

1. 1.The cavern water cushion provides a soft landing for the explorers.
   洞穴水垫为探险者提供了一个柔软的着陆点。
2. 2.The cavern water cushion helps protect the fragile ecosystem in the cave.
   洞穴水垫有助于保护洞穴中脆弱的生态系统。
3. 3.The cavern water cushion is a natural barrier that helps prevent soil erosion.
   洞穴水垫是一种自然屏障，有助于防止土壤侵蚀。