珊瑚礁为许多鱼类提供栖息地。

A ___coral reef provides habitat for many fish.

这个岛屿的珊瑚礁吸引了来自世界各地的潜水者。

The island's ___coral reefs attract divers from around the world.

由于气候变化，珊瑚白化是一个严重威胁。

___Coral bleaching is a serious threat due to climate change.