充滿活力和熱情的人;生龍活虎的人;朝氣蓬勃的人
牛津電影裡 100%
a person who is full of energy and enthusiasm
He was taking it in stride, but he had a friend who was a ball of fire.
釋義來自《牛津高階英漢雙解詞典》第 9 版