hacked bolt

例句：

1. 1.The car's engine was so loud that it felt like a broken bolt in my ear.
   汽车发动机的声音太响了，感觉像是在我的耳朵里断了一根螺栓。
2. 2.The old house needed some serious repairs; the roof had been hacked and the walls were cracked.
   这所老房子需要一些严重的修理；屋顶被破坏了，墙壁也裂开了。
3. 3. The workers had to fix the broken bolts on the door before they could open it.
   工人们必须在打开门之前修复门上的断裂螺栓。