a very small piece of fire that flies out from something that is burning, or one that is made by rubbing two hard things together, or a flash of light made by electricity

Sparks were flying out of the bonfire and blowing everywhere. 篝火中飞溅出很多火星，迸得到处都是。

You can start a fire by rubbing two dry pieces of wood together until you produce a spark. 你可以通过摩擦两块干木头直到产生火花来点火。

a first small event or problem that causes a much worse situation to develop

That small incident was the spark that set off the street riots. 那件小事是街头暴乱的导火线。

a feeling or quality that causes excitement

They kept running into each other and eventually realized there was a spark between them. 他们不断遇到对方，终于意识到他们之间有火花。

The music is mediocre because there's no spark, no thrill, no unpredictability. 音乐是平庸的，因为没有火花，没有刺激，没有出人意料的地方。

an electrician (= a person whose job is to put in and repair electrical wires and equipment)

You need a brickie and a sparks. 你需要一名泥瓦匠和一个电工。

sparks flyidiom 激烈争论

to cause the start of something, especially an argument or fighting

This proposal will almost certainly spark another countrywide debate about immigration. 这项提议很可能会再一次在全国范围内引起关于移民的争论。

The recent interest-rate rises have sparked new problems for small businesses. 近期利率的上调给小型企业带来了新问题。

The visit of the G20 leaders sparked off (= caused the start of) mass demonstrations. G20国家领导人的到访引发了大规模示威游行。