【磨杵成针】比喻做事持之以恒(héng),就一定会有成果。杵(chǔ),棒槌(bàng chui)。【成语典故】相传唐代大诗人李白小时候很贪玩,读书不专心。一天,他在路上看到一位老奶奶正在那儿磨(mó)着铁棒(tiě bàng),便好奇地问道:“老奶奶,您这是在做什么呀?”“我想把这铁棒磨成一枚(méi)针!”老奶奶回答道。李白又问:“这能行吗?”老奶奶耐心(nài xīn)地告诉李白:“只要工夫深,铁棒也能磨成针。”李白听了老奶奶的话,很受鼓舞,从此专心致志(zhuān xīn zhì zhì)读书,后来成了一位著名(zhù míng)的诗人。 【Pestle into a needle】 metaphor doing things perseverance, there will be results. Pestle (chǔ), stick hammer (bàng chui). [Idioms] According to legend, Tang Dynasty poet Li Bai was very fun when he was young and did not concentrate on his studies. One day he saw on the road a grandma who was grinding a tiger bar and asked curiously: “Grandma, what are you doing?” “I want to put this Iron rod ground into a (méi) needle! Replied the grandmother. Li Bai asked: ”This grandmother patiently told Li Bai: “ As long as the work is deep, the iron can also be ground into a needle. ”Li Bai was very encouraged by the grandmother, from then on Concentrate on reading, and later became a famous poet.