A large amount of dust fell into the atmosphere which for several years blocked the Earth's surface from the Sun.

大量的灰尘落入大气层，使地球表面与太阳隔绝了好几年。

Odds are, a piece of space dust falls on your head about once every day.

很有可能，一块太空尘埃大约每天一次落在你的头上。

There was dust in his beard and in his hair and on the rims of his eyelids, and dust fell off his clothes.

他的胡须、头发和眼睑上都沾满了灰尘，灰尘也从他的衣服上掉了下来。

As he said it, there was an explosion from overhead: All three of them looked up as dust fell from the ceiling and they heard a distant scream.

罗恩话音刚落，他们头顶就发生了爆炸：三个人抬头看时灰尘从天花板上落了下来，他们还听到了一声遥远的尖叫。