只要功夫深，铁杵磨成针
zhǐ​yào​gōng​fu​shēn​tiě​chǔ​mó​chéng​zhēn

if you work hard enough you can achieve anything

只要功夫深，铁杵磨成针 只要功夫深，鐵杵磨成針 zhǐ​yào​gōng​fu​shēn​tiě​chǔ​mó​chéng​zhēn
if you work hard enough you can achieve anything
literal meaning: if you work at it hard enough, you can grind an iron bar into a needle; used to say that with perseverance and effort, any difficult task can be accomplished.

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