n.电火花器
Some bright spark has left the tap running all night. 哪个小淘气干的聪明事，让水龙头开了一夜。
A spark touched off the gunpowder. 一粒火星引起了火药爆炸。
John is the spark plug on his rowing team. 约翰是划船队的中坚分子。
Local fighting might spark off a major war. 局部战斗有可能引发一场大规模战争。
There was a wild spark in his eyes. 他的两眼炯炯发光。
He hasn't a spark of generosity in him. 他一点也不慷慨。
