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

If you touch a live wire you will get a shock.
如果你摸带电的电线，就会触电。
Two live wire contacting points on the sliding plate are in flat form, which reduces resistance force when the bulb is screwed, and the bulb is uneasy to be damaged.
滑动板上的两个火线触点为平面形的，使拧装灯泡时阻力小不易损坏；
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
That is a live wire.
那是一根带电的电线。
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。
Danger! Electricity!; Danger! Live wire!
小心触电！
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
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 lineman was severely burned by the live wire.
电线架设工人被通电的电线严重烧伤。
The Application of the Live-wire Cleaning to the Telecommunication Equipments
带电清洗在电讯设备中的应用