Backdating
n. 倒填日期\\nv. 追溯（backdate的ing形式）
🗣️ 情景例句
If someone doesn't buy it before then,
如果在此之前没有人买走的话。
The life of the wolf is the death of the lamb.
狼的生就是羔羊的死。
How kind! You were lucky.
她多好啊！你很幸运。