In a few minutes the cloud withers to a mesh of dim filaments and disappears, leaving the sky perfectly clear and bright, every dust-particle wiped and washed out of it.

几分钟后，云层消退成网状的暗淡丝状物并消失，天空清澈明亮，每一个尘埃颗粒都被擦去和冲刷掉。