estuarine chemistry

例句：

1. 1. Estuarine areas are home to a variety of marine and freshwater species.
   河口地区是各种海洋和淡水物种的家园。
2. 2.The estuary is an important habitat for migratory birds.
   这个河口对候鸟来说是一个非常重要的栖息地。
3. 3.The estuary plays a crucial role in the ecosystem by filtering pollutants from the river.
   这个河口在生态系统中起着至关重要的作用，通过过滤来自河流的污染物。