Backtrace technique
[计] 回溯技术
🧩 词语组成解析
[计] 回溯
🗣️ 情景例句
Would you please try to keep quiet at this hour?
这么晚了，你能不能尽量保持安静。
Is there a car park nearby?
这附近有没有停车场？
No, it's open. It closes at six.
不，还没关。六点才关门。