body screw

例句：

1. 1. The car's engine is a bit loose; I need to tighten the body screws.
   这辆车的引擎有点松，我需要拧紧身体螺丝。
2. 2. He used a screwdriver to remove the body screws from the door.
   他用螺丝刀把车门上的螺丝拆下来。
3. 3. The mechanic replaced the body screws with new ones and tightened them securely.
   机械师用新的螺丝替换了旧的，并把它们牢牢地拧紧。