Backstitching
n. 回针\\nv. 用回式针迹缝（backstitch的ing形式）
🗣️ 情景例句
if it's all right with your dad.
假如你爸爸答应的话。
He is teasing a friend.
他在愚弄朋友。
What they had in fact found was a ship which had been sunk many years before.
事实上，他们发现的是另一艘沉没多年的船。