DICT.TW Dictionary Taiwan

 只要功夫深，鐵杵磨成針 [ㄓˇ ㄧㄠˋ ㄍㄨㄥ ˙ㄈㄨ ㄕㄣ , ㄊㄧㄝˇ ㄔㄨˇ ㄇㄛˊ ㄔㄥˊ ㄓㄣ; zhi3 yao4 gong1 fu5 shen1 , tie3 chu3 mo2 cheng2 zhen1]
 If you work at it hard enough, you can grind an iron bar into a needle.
 cf idiom 磨杵成針, to grind an iron bar down to a fine needle (idiom); fig. to persevere in a difficult task
 to study diligently
 ◄ ►