group of islands

例句：

1. 1.The group of islands off the coast is home to many marine species.
   海岸外的一群岛屿是许多海洋物种的家园。
2. 2. The group of islands was formed by a volcanic eruption.
   这群岛屿是由一次火山喷发形成的。
3. 3. The group of islands is famous for its beautiful beaches and clear waters.
   这群岛屿因其美丽的海滩和清澈的水域而闻名。