It set off a chain reaction in the international money markets.

这一事件在国际金融市场上引起了连锁反应。

《牛津词典》

The powder immediately ignited and set off a chain reaction of explosions.

炸药立即点燃并引发了连环爆炸反应。

《柯林斯英汉双解大词典》

The slump on Wall Street set up a chain reaction in stock markets around the world.

华尔街股价暴跌在全球股票市场上引起了连锁反应。

《牛津词典》

Listen to me. James is a tracker.The hunt is his obsession. I read his mind.My reaction on the field set him off.

VOA: standard.other

That's the set up. We're going to run the reactants, the reaction. The reactants are going to turn into products.

这就是我们的装置，我们要进行反应,让反应物变成生成物。

麻省理工公开课 - 热力学与动力学课程节选

Generally, there are a couple of elements that one might set down as in a Petri dish, and wait to see if some chemical reaction might take place, but not at all sure of what it might be.

一般来说，都有几个元素,作者会把它们像放入培养基中一样培养,等待某种化学反应的产生，但对可能的结果却一无所知。

普林斯顿公开课 - 人性课程节选

But I think a panic and a reaction set in, which has actually now made me the best known MP in Britain.

BBC: MP Nadine Dorries

If Disney's enthusiasm for mainstream America explains his popularity during his lifetime, it also explains the sharp reaction that set in against him after his death.

ECONOMIST: America��s sorcerer

So we do not have a set of responses that apply in reaction to a set of actions.

WHITEHOUSE: Press Briefing