想想鱼类和贝类所生活的环境。
世界各地的人们都会吃来自海洋和河流的各种鱼类和贝类。
People around the world eat all kinds of fish and shellfish from oceans and rivers.
该植物可作为稳定剂和沉积物捕集器，并可以作为培育河口鱼类和贝类的地方。
The plant functions as a stabilizer and a sediment trap and as a nursery area for estuarine fish and shellfish.
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