jigger wheel

例句：

1. 1.The old swing was a favorite spot for children to play.
   旧的摇摆是孩子们玩耍的最爱。
2. 2. The swivel on the door handle is loose and needs fixing.
   门把手上的旋转杆松动了，需要修理。
3. 3.The swings at the park were so high that they were almost impossible to reach.
   公园里的秋千太高了，几乎不可能到达。