duck down有“鸭绒”的意思，还有“低下头，弯下身”的意思。

【例句】
I wanted to duck down and slip past but they saw me.
我本想弯腰溜过去，但被他们看到了。

Printed down-proof cotton cloth duck down quilt.
全棉印花布男女睡衣印花防绒棉布鸭绒被。