Construction personnel must not in order to meet household only change at the switch and the plugwire, otherwise they will be electricity for households later buried safe hidden trouble.
施工人员千万不能为了应付住户而只换换开关和插头处的电线，否则会给住户以后用电埋下安全隐患。
2
The wire snapped at the wall plug with a blue flash.
随着一道蓝色的闪光，墙上插座处的电线啪地一声断了。
《柯林斯英汉双解大词典》
3
For every device you plug into the wall, you're running at least 110 volts of electricity through a length of wire.