trunk glacier

例句：

1. 1. The trunkof the tree is covered in moss and lichen.
   这棵树的树干上长满了苔藓和地衣。
2. 2.The trunk glacier was formed by the accumulation of snow over thousands of years.
   树干冰川是由数千年来积累的雪形成的。
3. 3.The trunk glacier is a natural wonder that attracts tourists from all over the world.
   树干冰川是一个自然奇观，吸引了来自世界各地的游客。