单词eider duck
na.: 绒鸭网络: 雁鸭；艾德·杜克
绒鸭（生活在北方国家）:
a large duck with soft feathers, that lives in northern countries
绒鸭
n. A quilt stuffed with the down of the eider duck.
这条被子是用绒鸭毛做芯子的。