无论如何，都不要去碰那些带电的电线。

Whatever you do, don't touch those live ___wires.

搭建舞台需要搬运沉重的音箱、灯具和一捆捆电线。

Setting up the stage involved carrying heavy speakers, lights, and bundles of ___wire.

墙后一根松动的电线是导致问题的原因。

A loose electrical ___wire behind the wall was causing the problem.