Closest Chinese expression亡羊补牢，为时未晚
Pinyinwáng yáng bǔ láo, wéi shí bù wǎn
Quick answer
The closest answer is 亡羊补牢，为时未晚: Correcting a problem after a loss can still prevent further harm.
Literal translation
Repair the pen after losing a sheep; it is not yet too late.
Are they completely equivalent?
The Chinese proverb specifically describes correcting a weakness after one loss so that further losses can be prevented.
When to use the Chinese saying
Use it when corrective action remains useful even though the ideal time has passed.
Other related Chinese expressions
A single English saying can point to different Chinese expressions depending on whether the speaker wants to emphasize action, patience, warning, hope, or social tone.
