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。
2
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。
3
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.