screwing

例句：

1. 1. The car was fixed by the mechanic with a new screw.
   汽车被技师用新的螺丝修好了。
2. 2. She used a screwdriver to tighten the bolts on the door.
   她用螺丝刀把门上的螺栓拧紧了。
3. 3.The screws holding the shelves together were too tight and had to be loosened.
   支撑架子的螺丝太紧了，需要松开。