缝线

例句：

1. 1. She sewed the dress together with a needle and thread.
   她用针线把裙子缝在一起。
2. 2. The seam is fraying at the edges, which needs to be mended.
   边缘的缝线开始磨损了，需要修补。
3. 3. I need to sew these buttons back on my coat.
   我需要把这些纽扣缝回我的外套上。