其中的托巴火山(湖)是250万年来，地球上最大的火山爆发的发生地。

Among these is Toba Caldera, the site of the largest eruption in the past 2.5 million years.

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但是科学家们相信，全球已处于变冷，大量的火山爆发如托巴湖能加速变冷。

But when a planet-wide cooling is already under way, a massive volcanic eruption like Toba's can quicken the chill, scientist believes.

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但是科学家们相信，全球已处于变冷，大量的火山爆发如托巴湖能加速变冷。

But when a planet-wide cooling is already under way, a massive volcanic eruption like Toba's can quicken the chill, scientist believes.

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