太阳最近经历的彗星雨是暴风雨之前的第一个大雨滴吗，或者仅仅是一个失常？

Was the comet storm the sun went through recently the first big raindrops before the storm, or just an aberration?

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一些科学家认为，这些偶然的彗星雨可能就是为什么地球上的大规模物种灭绝如此规律地发生的原因。

These occasional comet showers could be why the mass extinctions on Earth are so regular, some scientists believe.

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彗星会在经过的地方留下一些碎片，这些碎片可以引起地球上的流星雨现象。

Comets leave a trail of debris behind them that can lead to meteor showers on Earth.

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