axoidean

例句：

1. 1. The roots of the plant are exposed to the ground.
   这棵植物的根暴露在地面上。
2. 2. The tree is exposed to the elements.
   这棵树暴露在自然环境中。
3. 3. The exposed roots were covered with moss.
   露出地面的根部被苔藓覆盖了。