corallum

例句：

1. 1. The coral reef is a popular destination for scuba diving.
   珊瑚礁是潜水爱好者的热门目的地。
2. 2.Coral reefs are an important habitat for many marine species.
   珊瑚礁是许多海洋物种的重要栖息地。
3. 3. Due to pollution, the coral reefs in the area have been severely damaged.
   由于污染，该地区的珊瑚礁受到了严重破坏。