这次大灭绝的罪魁祸首并不是四处游荡的小行星或威力巨大的火山爆发，而是人类自己。

And this time the cause isn't an errant asteroid or megavolcanoes. It's us.

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许多小生物生存在地下洞穴中，萨卢斯特人猎取它们以得到食物和衣料，在行星的地面上游荡的一些捕食者则极少探察地下。

The underground caverns teem with small life-forms that the Sullustans hunt for sources of food and clothing. The few predators that wander the planet's surface rarely venture underground.

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