Backtrace technique
[计] 回溯技术
🧩 词语组成解析
[计] 回溯
🗣️ 情景例句
We've called it quits.
我们决定放弃（我们之间的关系了）。
After forty years teaching English he thinks it's time to call it a day.
他教英语四十年，认为该退休了。
This factory needs a computer as soon as possible.
工厂需要尽快有一台电脑。