鲁班上山砍树,爬坡时抓住一把野草,结果给野草划破了手。鲁班受到启发,发明了锯子。“难道锯子就是这么发明的?这也太简单不过了。我们平时也经常被野草划破手呀!可我们怎么就想不起来发明锯子呢?”同村人都瞪大眼睛问鲁班。“这就要问你们自己了。”鲁班笑道,“说说看,你们在 Luban down the hill, grab a weed when climbing, the result was weed cut his hand. Luban was inspired and invented the saw. “Is it so invented saw? This is too simple, but we usually are often weed scratched it! But how can we not remember to invent saw it?” The same village who asked Luban wide-eyed. “You have to ask yourself,” Luban laughed. "Tell me, you are there