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.
平时不要象管线工那样在包里放上12把不同的螺丝刀才感到放心。
Only cable guys have 12 different screwdrivers to guarantee the full-gear status every day.
平时不要象管线工那样在包里放上12把不同的螺丝刀才感到放心。
Only cable guys have 12 different screwdrivers to guarantee the full-gear status every day.
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