绳球

例句：

1. 1. He tied the knot in the rope to secure it.
   他系紧了绳子上的结来固定它。
2. 2. The boy was playing with his new rope ball.
   那个男孩正在玩他的新跳绳。
3. 3. She used a rope to climb up the tree.
   她用绳子爬上了树。