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

She's a live wire.
她既活泼而又精力充沛。
It's dangerous to touch a live wire.
触摸带电的电线是最危险的。
In this paper, an algorithm based on the combination of the live wire algorithm and the active contour model is proposed for the semiautomatic segmentation of medical image series.
介绍了一种结合livewire算法和活动轮廓模型的医学图像序列的分割方法。
Your brother is certainly a live wire, isn't he?
你弟弟的确是个活跃的人，不是吗？
Danger! Electricity!; Danger! Live wire!
小心触电！
If you touch a live wire you will get a shock.
如果你摸带电的电线，就会触电。
Tommy's a real live wire, so we had difficulty in keeping him quiet when we took him to a concert.
汤姆实在是太好动了，所以我们带他去听音乐会时要让他安静下来是很难的。
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。
She seems to have inexhaustible energy.; She's a live wire.
她仿佛有使不完的劲。
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。