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

It's dangerous to touch a live wire.
触摸带电的电线是最危险的。
She's a live wire.
她既活泼而又精力充沛。
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。
The Application of the Live-wire Cleaning to the Telecommunication Equipments
带电清洗在电讯设备中的应用
Your brother is certainly a live wire, isn't he?
你弟弟的确是个活跃的人，不是吗？
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。
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。
However, people can live in many different norms Jiezhuang see crosscutting temporary wiring casually provide connectivity and some have Luzhe copper wire;
但是，人们可以在许多很不规范的家装现场看到，纵横交错的临时电线胡乱搭接，有的还露着铜丝；
If you touch a live wire you will get a shock.
如果你摸带电的电线，就会触电。
That is a live wire.
那是一根带电的电线。