道路被挖开来铺设电缆。

The road had been dug up in order to lay ___cables.

架空电力电缆如果不妥善维护可能会很危险。

Overhead power ___cables can be dangerous if not properly maintained.

一只老鼠咬坏了电缆，因此再也没有信号了。

A mouse had eaten the ___cable, so there was no contact anymore.