淡水植物和动物图片。草飘浮物在美国的一条河流。河流栖息地，称为河岸系统，通常包含茂密的植被和大量的动物的种类。

Grass floats in a river in the United States. River habitats, called riparian systems, often contain lush vegetation and a wealth of animal species.

youdao

淡水植物和动物图片。草飘浮物在美国的一条河流。河流栖息地，称为河岸系统，通常包含茂密的植被和大量的动物的种类。

Grass floats in a river in the United States. River habitats, called riparian systems, often contain lush vegetation and a wealth of animal species.

youdao