hip circle in rear support

例句：

1. 1.The car's hip circle was damaged during the accident.
   汽车的后座圈在事故中受损。
2. 2.The new model has a sleeker design with a more modern hip circle.
   新款设计更加流线型，具有更现代的轮毂。
3. 3. The driver had to replace the worn-out hip circle on his bicycle.
   驾驶员不得不更换他的自行车磨损的轮毂。