screwjob是什么意思

　　These screws are metric.

　　这些螺丝钉是用公制尺码制造的。

　　I can't get the screw to turn.

　　我拧不动这个螺丝钉。

　　The screw was so tight that it wouldn't move.

　　螺丝钉太紧，拧不开。

　　The screw had worked loose.

　　这螺丝钉松动了。

　　The screw is out of condition.

　　这个螺丝钉坏了。