plume|plumed|plumes

她的帽子上装饰着一根漂亮的羽毛。

Her hat was decorated with a beautiful ___plume.

那只鸟头上有一簇漂亮的羽冠。

The bird had a beautiful ___plumed crest on its head.

她的帽子上装饰着几根漂亮的孔雀羽毛。

Her hat was decorated with beautiful peacock ___plumes.