suspending dust

例句：

1. 1. The airwas filled with suspended dust from the constructionsite.
   空气中充满了来自建筑工地的悬浮尘埃。
2. 2. The scientist observed that the suspended dustcould be a sign of pollution.
   科学家观察到悬浮尘埃可能是污染的一个标志。
3. 3. The windcarried the suspended dust away, leaving theground clean.
   风把悬浮尘埃吹走了，让地面变得干净。