idle wire

例句：

1. 1. The idlewires in the workshop were a hazardto workers.
   车间里的闲置电线对工人来说是危险的。
2. 2. The old house had many idle wires that needed to be replaced.
   这所旧房子有很多需要更换的闲置电线。
3. 3. The electrician was busy fixingthe broken wires in the basement.
   电工正在忙着修理地下室里断掉的电线。