只要功夫深，铁杵磨成针

Explanation: Proverb. Analogy with determination, willing to work hard, how difficult things can do successfully. 　　Usage: Complex sentence; as the predicate attribute; with compliment 　　Source: Song Zhu Mu "Fang Yu Sheng Lan Meizhou grinding River" elephant ears th teaches reading in the mountains of Li Bai, academic minors, which abandoned to, over a river, every old woman grinding Tiechu side, and asked, saying, 'To make needle . 'Bai sense of its meaning, but also graduate. " 　　Examples: ~, After five years of hard work, he mastered the English language.