灰鹅绒-在重量、体积等配比方面具有最杰出的性能，价格较白鹅绒便宜。

Very fine, but cheaper than the white down. Minimum weight and volume.

youdao

灰鹅绒-在重量、体积等配比方面具有最杰出的性能，价格较白鹅绒便宜。

Very fine, but cheaper than the white down. Minimum weight and volume.

youdao