唐代,有一个富商,他有个调皮的儿子叫李白,经常偷偷逃课跑出去玩。一天,他看见有个老婆婆拿着一根铁杵,在水边的石头上不停地磨。李白好奇地问:“老婆婆,你在做什么呀?”老婆婆说:“我要把这根铁杵磨成绣花针。”李白吓了一跳:“这么粗的一根铁杵怎么磨成绣花针呢?”老婆婆擦了擦额头上的汗, In the Tang Dynasty, there was a wealthy businessman who had a naughty son named Li Bai who often ran away to run out of classes. One day, he saw an old woman holding an iron pestle, constantly grinding on the rocks beside the water. Li Bai curiously asked: “Granny, what are you doing? ” The old woman said: “I want to ground this iron pestle into an embroidery needle. ” Li Bai was shocked: “such a thick iron Pestle how to wear embroidery needle? ”" Granny wiped his forehead sweat,