兔子的皮毛非常柔软保暖。

The rabbit's ___fur is very soft and warm.

在寒冷的北方，人们经常穿皮草来保暖。

People in the cold north often wear ___furs to keep warm.

这种地毯表面有一层柔软的仿毛皮。

This carpet has a layer of soft ___fur on its surface.