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Estuaries Mix Salt and Fresh Water Naturally
河口自然混合咸水与淡水
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Estuaries form where rivers flow into the sea and mix waters.河口是河流入海并与海水交汇之处。
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Salt and fresh water create unique habitats for many species.咸淡水交汇为众多物种创造了独特栖息地。
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Mangroves and salt marshes grow here, protecting coasts from storms.红树林和盐沼在此生长，保护海岸免受风暴侵袭。
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Young fish, shrimp, and crabs use estuaries as safe nurseries.幼鱼、虾和蟹将河口用作安全的育苗场。
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Pollution and dredging harm these sensitive transition zones.污染和疏浚会破坏这些敏感的过渡带。
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Healthy estuaries improve water quality before it reaches the ocean.健康的河口能在水体入海前改善其水质。