尘

She´s obsessively tidy, always hoovering and polishing.

她有洁癖，整天不是用吸尘器吸尘，就是擦来擦去。

The maid went over the room quickly with a duster.

那个女仆用掸子很快地给房间掸尘。

There are particles of dust in the air.

空气中有尘粒。

Dustbags act as a filter and suction will be reduced if they are too full.

集尘袋起着过滤的作用，所集的灰尘太多时其吸附作用就会减小。

Carbon dust and oil build up in large motors and cause them to short-circuit.

碳尘和燃油在大发动机里越积越多，造成了发动机短路。