The meteorite might have caused a huge dust cloud.
陨星可引起巨大的尘埃云。
The dust cloud will envelop the planet within weeks.
产生的尘云将会笼罩整个星球长达几周。
Pulverised rock will climb as a dust cloud into the atmosphere.
石粉会像尘雾一样上升到大气中。
They concluded that what Hubble had seen was probably just a transient dust cloud.
于是他们总结道：哈勃望远镜拍摄到的可能只是瞬间形成的粉尘云。
They concluded that what Hubble had seen was probably just a transient dust cloud.
于是他们总结道：哈勃望远镜拍摄到的可能只是瞬间形成的粉尘云。
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