korai

例句：

1. 1. 珊瑚礁
   Coral Reef
2. 2.珊瑚
   Coral
3. 3. 珊瑚礁生态系统
   Coral Reef Ecosystem
4. 1. The coral reef is a natural wonder that attracts tourists from all over the world.
   珊瑚礁是一个自然奇观，吸引了来自世界各地的游客。
5. 2. Corals are an important part of the ocean ecosystem, providing food and shelter for many marine species.
   珊瑚是海洋生态系统的重要组成部分，为许多海洋物种提供食物和栖息地。
6. 3. In recent years, scientists have been studying coral reefs to understand their importance in maintaining marine biodiversity.
   近年来，科学家们一直在研究珊瑚礁，以了解它们在维护海洋生物多样性中的重要性。