Backstitching
n. 回针\\nv. 用回式针迹缝（backstitch的ing形式）
🗣️ 情景例句
I've been busy all day.
我今天一整天都非常忙。
She is tickling her baby.
她在咯吱她的小宝宝。
You will be very lucky if he lets you go without a ticket.
如果他没给你罚单就放你走了，算你走运。