螺丝钉

• I took out just one screw and the whole thing came down
  我只拿掉一个螺丝钉，整个东西就坍下来了。
• The screw on the machine seems loose ; you need to tighten it up
  （这机器的螺丝钉松了，你要上紧。 ）
• Verify strengthening all the screws
  加固拧紧所有的螺丝钉。
• They seemed cogs in a machine
  他们似乎是机器上的螺丝钉。
• This packet is supposed to contain ten screws , but it ' s two short
  这包应装有十个螺丝钉,可是短了两个
• This packet is supposed to contain ten screws , but it ' s two short
  这包应装有十个螺丝钉,可是短了两个
• This rack screws on easily
  这个挂物架易于用螺丝钉固定。
• The carpenter up the joints of the table which had become louse
  木匠用螺丝钉把桌子上松动的木榫头固定。
• “ it turned out to be a screw
  结果是一个螺丝钉。
• This screw needs tightening
  这螺丝钉需要再拧紧些。