credit screw

例句：

1. 1. The engineer used a credit screwto tighten the bolt on the door.
   工程师用一个信用螺丝来紧固门上的螺栓。
2. 2. The credit screw was rusted andneeded to be replaced.
   信用螺丝生锈了，需要更换。
3. 3. The car's engine wasso loud that it sounded like a creditscrew was being turned.
   汽车发动机声音很大，听起来像是在转动一个信用螺丝。