They tend to operate on a hair trigger so they can profit from breaking news before other investors act and wipe out their advantage.

他们常常一触即发以至于能在其他的投资人行动，丧失优势前从爆炸新闻中盈利。

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Investors fall into a special category as news consumers; they tend to operate on a hair trigger so they can profit from breaking news before other investors act and wipe out their advantage.

作为新闻的消费者，投资人是一个特殊的类别。他们常常一触即发以至于能在其他的投资人行动，丧失优势前从爆炸新闻中盈利。

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A hair-trigger situation has been created which could lead to an outbreak of war at any time.

局势风云突变，战争一触即发。

《柯林斯英汉双解大词典》

Chemical sprays like air fresheners,hair spray, household cleaning products and even strong perfumes can also trigger an asthma attack.

VOA: special.2009.07.28

Chemical sprays like air fresheners, hair spray,cleaning products and even strong beauty aids can trigger an asthma attack.

VOA: special.2010.09.07

In a crisis, the temptation would always be to hold these missiles on a hair trigger, to be launched on warning of an incoming attack rather than lost to an enemy strike.

ECONOMIST: It's worse than you thought

What is more, it is a hair trigger.

ECONOMIST: America and Iraq

The same Capsugel deal today, Kravis said, would have a cost of capital near 9%, a reflection of the late-summer weakness in equity markets and window closing in the high-yield market, which moves on a hair trigger in turbulent times.

FORBES: KKR's Henry Kravis: 'Any Fool Can Buy A Company'