1. 绒羽：supraoesophageal 食管上的 | down feather 绒羽 | Japan china 日本产陶器

2. 羽绒：down feather quilt 羽绒被 | down feather 羽绒 | down filled garment 羽绒服装

3. 绒毛：down 短绒毛 | down feather 绒毛 | down's syndrome 唐氏综合征

noun

1. soft fine feathers

Synonym: down