torsion of pedunculated fibroid

例句：

1. 1.The rope was twisted around the post.
   绳子绕在柱子上。
2. 2.The snake coiled itself around a rock.
   蛇缠绕在石头上。
3. 3. The tree's branches are twisted and gnarled.
   树的枝条扭曲且粗糙。