marsh wall

例句：

1. 1. The marshwall is a natural barrier that separatesthe land from the water.
   沼泽墙是一个自然屏障，将陆地与水域分隔开来。
2. 2.The marsh wall was built to protectthe fragile ecosystem from further damage.
   沼泽墙被建造来保护脆弱的生态系统免受进一步损害。
3. 3. The marsh wall is home tomany rare and endangered species.
   沼泽墙是许多稀有和濒危物种的家园。