vt.在（衣服）外面的缝旁缝一道针迹； 变形： 过去式：topstitched过去分词：topstitched现在分词：topstitching第三人称单数：topstitches 英英释义： TopstitchTopstitching is a sewing technique. It is used most often on garment edges such as necklines and hems, where it helps facings to stay in place and gi