Backtracking operation
[计] 回溯操作, 向后追踪操作
🧩 词语组成解析
[计] 回溯法
🗣️ 情景例句
Window, please.
靠窗的吧。
I must play my spare time well, or I end up doing nothing.
我必须善于利用空闲的时间，否则生命将会在无所事事中告终。
Let me explain why I was late.
让我解释迟到的理由。