First, we must detect that we have received the final timer event in the burst.

首先，我们必须检测是否已经收到了连续计时器事件中的最后一个计时器事件。

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But well before all that happened, another event triggered a different burst of evolutionary activity.

但是在恐龙灭绝之前，另一件事件引起了大规模的生物进化。

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But well before all that happened, another event triggered a different burst of evolutionary activity.

但是在恐龙灭绝之前，另一件事件引起了大规模的生物进化。

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