苏门答腊岛

例句：

1. 1. This island is famous for its beautiful beaches and tropical rainforests.
   这个岛以其美丽的海滩和热带雨林而闻名。
2. 2. The island is home to many rare species of plants and animals.
   这个岛是许多稀有植物和动物的家园。
3. 3. Tourists often visit this island to explore its rich culture and history.
   游客经常来这个岛探索其丰富的文化和历史。