倒缝倒缝
Backstitch \Back"stitch`\, n. [Back, adv. + stitch.] A stitch made by setting the needle back of the end of the last stitch, and bringing it out in front of the end. Backstitch \Back"stitch`\, v. i. To sew with backstitches; as, to backstitch a seam.
backstitch n : overlapping stitch made by starting next stitch at middle of preceding one v : do backstitches