地理漫步·世界地理英语30篇（8）
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Coral Reefs Build Living Coastlines
珊瑚礁构筑活态海岸线
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Coral reefs grow slowly from tiny sea animals called polyps.珊瑚礁由微小的海洋动物——珊瑚虫缓慢生长而成。
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They form complex structures along tropical coastlines and islands.它们在热带海岸线和岛屿周围形成复杂的结构。
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Reefs protect shorelines by breaking wave energy before it hits land.珊瑚礁通过削弱海浪能量，保护海岸线免受冲击。
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Fish, crabs, and shellfish live among reef branches and crevices.鱼类、螃蟹和贝类栖息在珊瑚分支与缝隙之间。
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Warm water and clear sunlight help corals thrive near the surface.温暖的海水和充足的阳光有助于珊瑚在浅海繁盛。
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Pollution and rising temperatures cause coral bleaching and death.污染和水温升高导致珊瑚白化并死亡。
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Dead reefs leave coasts exposed to stronger storms and erosion.死亡的珊瑚礁使海岸暴露于更强风暴和侵蚀之下。
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Healthy reefs support both marine life and local fishing economies.健康的珊瑚礁既支撑海洋生物，也维系当地渔业经济。