我学习不怎么用功,常常贪玩。这事给姥爷知道了。有一天,我到姥姥家,姥爷把我拉到怀里,给我讲了一段故事。他说古时候有一位少年,出去游玩,见一位老婆婆, 正蘸着溪水在岩石上磨一根铁杵(姥爷说,铁杵就是铁棒)。少年觉得奇怪,便停住脚步,站在一旁观看。老婆婆问少年有何事,少年躬身请教老婆婆磨铁杵何用。老婆婆说要把铁 I learn not very hard, often playful. This thing to grandpa know. One day, I went to my grandmother's house and grandpa took me to my arms and told me a story. He said that there was a boy in ancient times who went out to play and saw an old woman who was grinding an iron pestle on a rock with a stream of water (Grandpa said that the iron pestle was an iron bar). Juvenile strange, then stop, stand aside to watch. The old woman asked what young things, juvenile bend to the old lady to learn how to use iron pestle. Old woman said to iron