Snagged or pulled thread or yarn.

布料起皱或有抽线、抽纱征象；

youdao

As he had a compassionate heart he pulled out his needle and thread, and sewed her together.

他怀着一颗怜悯的心，抽出针线，把她缝在了一起。

youdao

Sew a running stitch (red thread in figure A) on the toe, as marked on the pattern (later it will be pulled to form gathers.)

根据模板上画好的痕迹在脚趾部分缝一段平针（如图A中红线所示），（以后这部分会被拉紧形成褶皱）

youdao

They have pulled on every thread.

WHITEHOUSE: Press Briefing

It sat, dangling like a loose thread, demanding to be pulled.

BBC: The bloom of cancer