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
No, no, I'm just a little upset.
没有，没有受伤，只是情绪有点不稳。
Excuse me. Could you give me change for a dollar?
劳驾，你能不能换1元零钱给我？
She never pitied me; she never praised me unless what I did was as good as that of the best of a normal person.
她从不怜悯我，她也从不表扬我，除非我所做的事像正常人干的那样出色。