reef

We watched colourful fish swimming around the coral reef. ▶

我们看着色彩斑斓的鱼在珊瑚礁周围游动。

Protecting coral reefs is essential because they support marine biodiversity and help shield coastlines from powerful waves.

保护珊瑚礁至关重要，因为它们维持海洋生物多样性，并帮助海岸抵御强浪。