中文翻译与英英解释

n. 扣针脚，倒缝。
2.vt.,vi. 倒缝。

an overlapping stitch made by starting the next stitch at the middle of the preceding one

do backstitches

Backstitch or back stitch and its variants stem stitch, outline stitch and split stitch are a class of embroidery and sewing stitches in which individual stitches are made backward to the general direction of sewing. These stitches form lines and are most often used to outline shapes or to add fine detail to an embroidered picture.