sew down

例句：

1. 1. She sewed the torn shirt together with a needle and thread.
   她用针线把破掉的衬衫缝补起来。
2. 2.The car was sewed down securely to the ground.
   汽车被牢牢地固定在地上。
3. 3. The soldiers were sewing down the edges of the tent flaps to keep them from blowing away.
   士兵们正在把帐篷的边角缝紧，以防它们被风吹走。