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

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。
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。
She's a live wire.
她既活泼而又精力充沛。
Cut back the cover of the neutral and live wire about one Inch
将带电和不带电的电线头上的包皮割去约一英寸
The lineman was severely burned by the live wire.
电线架设工人被通电的电线严重烧伤。
Danger! Electricity!; Danger! Live wire!
小心触电！
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。
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
Your brother is certainly a live wire, isn't he?
你弟弟的确是个活跃的人，不是吗？