| 磨杵成针 | mó chǔ chéng zhēn | to grind an iron bar down to a fine needle (idiom); fig. to persevere in a difficult task / to study diligently |
| 铁杵成针 | tiě chǔ chéng zhēn | see 磨杵成針|磨杵成针[mo2 chu3 cheng2 zhen1] |
| 只要功夫深，铁杵磨成针 | zhǐ yào gōng fu shēn , tiě chǔ mó chéng zhēn | 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 |