aquatic soil

例句：

1. 1.The fish swim in the aquaticenvironment.
   鱼在水生环境中游动。
2. 2. Thecoral reef is an aquatic ecosystem.
   珊瑚礁是一个水生生态系统。
3. 3. The aquatic plants are adapted to living in water.
   水生植物适应在水中生活。