Definition
To perform an action that averts a potential defeat or failure.
扭轉乾坤，功赫垂成
The firefighters arrived in time to put out the blaze and save the day.
消防員及時趕到撲滅了大火，拯救了局面。
At the last minute, she came up with a brilliant solution that saved the day for the project.
在最後一刻，她提出了一個絕妙的解決方案，拯救了這個項目。
He found the bug in the code and fixed it just in time, saving the day by preventing the system from crashing.
他找到了代碼中的錯誤並及時修復，通過防止系統崩潰拯救了局面。