live wire

英 [lɪv ˈwaɪə(r)]

美 [lɪv ˈwaɪər]

n. 精力充沛之人; 生龙活虎之人

柯林斯词典

精力充沛之人；生龙活虎之人
If you describe someone as alive wire, you mean that they are lively and energetic.

noun

Your brother is certainly a live wire, isn't he?
你弟弟的确是个活跃的人，不是吗？
She got shocked when she touched the live wire.
她在触到通电的电线时受到电击。
She seems to have inexhaustible energy.; She's a live wire.
她仿佛有使不完的劲。
Wendy is the real live wire of the department who motivates all the others.
温迪是这个部门的活跃分子，对其他人很有激发力。
It's dangerous to touch a live wire.
触摸带电的电线是最危险的。
If you touch a live wire you will get a shock.
如果你摸带电的电线，就会触电。
This week a man was admitted to hospital in northern England after being electrocuted cutting through a live wire carrying 11,000 volts trying to steal the copper it contained.
上周，英格兰北部一名男子为了窃取电线中的铜，试图切断一条1.1万伏的高压电线，因此触电住进了医院。
A barrier of felled or live trees with branches ( sharpened or with barbed wire entwined) toward the enemy.
用树枝做成的路障（这些树枝被削尖了，和带电铁丝网混在一起）以对付敌人。
That is a live wire.
那是一根带电的电线。
Detector for the Reinforcing Steel Bar, Metal Water Pipe and Live Wire in the Wall
墙体中钢筋、金属水管、电线探测器