火山把团团热气和灰尘喷向高空。
The volcano spurted clouds of steam and ash high into the air.
此外，如果水冰与岩石和灰尘混合在一起，它就不会蒸发掉。
Furthermore, if the water ice was mixed in with rock and dust, it would be protected from evaporation.
撞击产生的烟尘和灰尘覆盖了地球，抑制了光合作用，引发了物种的大规模灭绝。
Airborne soot and dirt from the impact blanketed Earth, inhibiting photosynthesis and triggering mass extinction of species.
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