splice pad

例句：

1. 1. She used a splice pad to help her sew the dress together more neatly.
   她使用一个缝纫垫来帮助她更整齐地缝制裙子。
2. 2. The seam allowance pad was essential for ensuring that the hem of the skirt stayed straight.
   缝纫垫对于确保裙子的下摆保持直挺至关重要。
3. 3. During the sewing process, she carefully placed the splice pad under the fabric to prevent any uneven stitches.
   在缝纫过程中，她小心地把缝纫垫放在布料下面，以防止出现不均匀的针脚。