由于污染、对健康和野生动物的威胁,美国最大的河流系统水质正在下降。 Water quality in the U.S.'s largest river system is declining due to pollution, threatening health and wildlife.
美国最大的河流系统的水质正在下降,引起人们对环境卫生和饮用水安全的担忧。 Water quality in the largest river system in the United States is declining, raising concerns about environmental health and the safety of drinking water. 农业径流、工业废物和城市地区造成的污染正在促成退化。 Pollution from agricultural runoff, industrial waste, and urban areas is contributing to the degradation. 专家们警告说,如果没有干预,情况可能会恶化,对依赖河流的野生动物和人类社区产生影响。 Experts warn that without intervention, the situation could worsen, impacting wildlife and human communities dependent on the river.