Following each mass extinction, there is a sudden evolutionary burst as new species develop to fill the ecological niches opened by the event.

在每一次物种大灭绝后，都有一次突然的进化爆发，因为会有新物种出现来填补灭绝创造的生态位。

youdao

When the same source flared again after a 45 minute pause it was clear this event was not a typical gamma-ray burst.

当 45 分钟的停顿之后同一源头再次爆发时，很显然这一事件并非通常的伽马射线爆发。

youdao

After a burst of messages in response to a news event, the traders often acted in sync, converging on the same conclusion and executing a large number of trades at the exact same time.

发生突发事件时，交易商通常会发出大量的信息，采取同步行动，做出同样的决定，在同一时刻完成大量的交易。

youdao

But for a short-lived event such as a gamma-ray burst it means that the same blast may become visible again in the future.

ECONOMIST: An illuminating burst

This team, led by physicist Sergio Campana, suggests that the event happened much later, and the burst was only about 10, 000 light years away from Earth.

FORBES: Scientists Develop Two Scenarios For Cosmic Christmas Explosion

After trailing in the 60m heats, a late burst pipped Donna Fraser in the 200m final - an event she is simply using for speed-work.

BBC: Banishing the Beijing demons