The autumn flood raised the water level in the river and broke through the protective dam. water fills holes and ravines. Dry fallen leaves and grass remains can be seen under the water

The autumn flood raised the water level in the river and broke through the protective dam. water fills holes and ravines. Dry fallen leaves and grass remains can be seen under the water
关键词
生态学问题湖道路保护春天有毒湍流岸边快污染流体排水风暴电流溪流排水管销毁流量脏泄漏河流损伤溢流超额大坝自然森林动议突破游泳水开槽郊区污水洪水深度潮湿模糊压力放电海湾废弃物来源

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