他的外套上沾满了灰尘。

His coat was covered with ___dirt.

也许将来他们会找到一种能保护你免受灰尘和危险阳光侵害的新面料。

Maybe in the future they'll find a new fabric which protects you from ___dirt and dangerous sunshine.

在花园里玩耍后，他的手上沾满了泥土。

After playing in the garden, there was ___dirt all over his hands.