unexpected event

基本解释

The article discussed the unexpected event of the group in city C. from three aspects.
文章从三个方面来论述了C市群体性突发事件。
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In the new situation, based on conception renovation, the media should cooperate with government closely and establish mass-communicating mechanism of the report of the unexpected event.
面对新的形势，媒介应在更新观念的基础上，和政府密切合作，建立健全突发事件传播机制。
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On the account of the unexpectedness, tremendous conflict and social influence of the unexpected event, it becomes the focus of the public concern and is of great news value once it occurs.
突发事件因为其突发性、不可预测性、巨大的矛盾冲突和社会影响力，一旦发生，就成为社会公众关注的焦点，具有较大的新闻价值。
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The first stage begins when some unexpected event shatters an overdone psychological environment.
FORBES: Deleveraging Bites On Both Sides Of The Atlantic
Yes, sometimes you just get a flop (Russell or Carr) and sometimes an unexpected event comes along to kill an endorsement portfolio (Vick).
FORBES: Endorsements Aren't Won on Draft Day
When he does experience an occasional spike in his blood pressure, he said, it is usually caused by an unexpected event, particularly on the battlefield.
NEWYORKER: The General’s Dilemma

突发事件
The article discussed the unexpected event of the group in city C. from three aspects. First part, the nature and characteristics of the group event was introduced .
文章从三个方面来论述了C市群体性突发事件。