- If you work at it hard enough, you can grind an iron bar into a needle.
- cf idiom 磨杵成針|磨杵成针, to grind an iron bar down to a fine needle (idiom); fig. to persevere in a difficult task
- to study diligently
Pssst. We need your support!
CharacterPop survives on your patronage. Help support the site and gain access to extra features when you upgrade your account.