2 sentences for 丝 (sī — silk fiber)

1. 这件冬衣里絮了厚厚的丝绵。

   zhè jiàn dōng​yī lǐ xù le hòu​hòu de sī mián.

   This winter coat is padded with thick silk floss.

   Source: Dong Chinese Dictionary

2. 这床被子里絮了厚厚的一层丝，非常暖和。

   zhè chuáng bèi​zi lǐ xù le hòu hòu de yī céng sī, fēi​cháng nuǎn​huo.

   This quilt is padded with a thick layer of silk, so it is very warm.

   Source: Dong Chinese Dictionary