created sense approved 磨杵成针/磨杵成針 · móchǔchéngzhēn · persevere
磨杵成针 / 磨杵成針
móchǔchéngzhēn
persevere
to persevere in a difficult task through constant effort or to study diligently; literally to grind an iron bar down to a fine needle
只要有磨杵成针的恒心，任何困难都能克服。