The undercoat is buff or gray.

底毛为浅黄色或灰色。

The absence of an undercoat is a fault.

缺乏底毛属于缺陷。

Undercoat should not show through outer coat.

底毛不能透过披毛显示出来。

The undercoat comes out in clumps twice a year.

该底漆出来成簇每年两次。

The undercoat is thick and must not show through.

的短毛很厚并不能表明通过。