bow shackle

例句：

1. 1. The horse was tied to the post with a bow shackle.
   这匹马用缰绳系在柱上。
2. 2. The shackle on his wrist held him back from freedom.
   他手腕上的枷锁限制了他的自由。
3. 3. The old man's hands were bound with a bow shackle, unable to move.
   老人的手被缰绳绑住，动弹不得。