Backtrace technique
[计] 回溯技术
🧩 词语组成解析
[计] 回溯
🗣️ 情景例句
That's like closing the gate after the horse has bolted.
那无异于马后炮。
I hope I remember to ask the barber not to cut my hair too short.
我希望我能记得要求理发师把我的头发理短点。
I'm sorry, I don't know. You'd better ask that policeman.
对不起，我不知道。你最好问问那位警察。