nut screw

例句：

1. 1. The car was stuck in the mud with a nut screw in its engine.
   汽车卡在泥里，发动机里有一颗坚果螺丝。
2. 2.He used a nut screw to tighten the screws on the cabinet.
   他用一颗坚果螺丝来紧固橱柜上的螺丝。
3. 3.The engineer had to remove the nut screw and replace it with a new one.
   工程师不得不取出那颗坚果螺丝并用新的替换。