我们给家具套上防尘罩以防灰尘。

We put dust ___coverings on the furniture to protect it.

这些椅子的软垫套需要定期清洗。

The fabric ___coverings on these chairs need to be washed regularly.

这只动物的厚皮毛覆盖物在寒冷天气中提供了良好的保护。

The animal's thick ___coverings provide excellent protection in cold weather.