翻译以下文章。



原文: The Great Barrier Reef is the world's largest coral reef system, composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometers. It is located in the Coral Sea, off the coast of Australia. It is home to thousands of species of marine life, many of which are endangered.
大堡礁是世界上最大的珊瑚礁系统，由超过2,900个单独的珊瑚礁和900个岛屿组成，总长超过2,300公里。它位于澳大利亚海岸外的珊瑚海，是数千种海洋生物的栖息地，其中许多是濒危物种。