Backstitching
n. 回针\\nv. 用回式针迹缝（backstitch的ing形式）
🗣️ 情景例句
And miles to go before I sleep,
在我就寝前还得赶许多哩路
Buy one get one free.
买一送一。
I want to go shopping. Can you come with me, please? You can help me carry the things.
我想去商店买东西，你能和我一起去吗？你可以帮我拿点东西。