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1. Oxford American Dictionary

   threader

   • IPA[ˈTHredər]

   美式

   • n.
     a device for passing a thread through the needle and guides of a sewing machine.；a factory worker who attaches spools of yarn to a loom.

   • noun: threader, plural noun: threaders

2. • 釋義

   n.

   名詞

   • 1. a device for passing a thread through the needle and guides of a sewing machine.
   • ▪ a factory worker who attaches spools of yarn to a loom.
   • 2. a device for cutting a spiral ridge on the outside of a screw or the inside of a hole.