针脚

例句：

1. 1. The dress is made of silk, and the seams are carefully sewn together with fine thread.
   这件衣服是用丝绸做的，缝合得非常仔细，用细线缝制。
2. 2. The tailor skillfully uses a needle to sew the fabric together.
   裁缝熟练地使用针线将布料缝在一起。
3. 3. She carefully placed each button on the buttonhole before sewing the garment together.
   她在缝制衣物之前，小心翼翼地将每个扣子放在钮孔上。